UTILMD (187 / 189)
Check identifier 55665 — Response message/request for data of MaLo
Check identifier 55665 · EDIFACT message type UTILMD · format version 202610
Data structure
| Structure (BO4E) | Description | Format | 55665 | Condition |
|---|---|---|---|---|
| stammdaten | — | object | May | — |
| MARKTLOKATION [ ] | — | object[] | May | — |
| datenqualitaet 00010 | Data quality | Enum Datenqualitaet | Must | — |
ERWARTETE_DATEN | — | — | Must | — |
IM_SYSTEM_VORHANDENE_DATEN | — | — | Must | — |
INFORMATIVE_DATEN | — | — | Must | — |
GUELTIGE_DATEN | — | — | Must | — |
KEINE_DATEN | — | — | Must | — |
IM_SYSTEM_KEINE_DATEN_VORHANDEN | — | — | Must | — |
KEINE_DATEN_ERWARTET | — | — | Must | — |
DIFFERENZ_DATEN | — | — | Must | — |
DIFFERENZ_ERWARTETE_DATEN | — | — | Must | — |
DIFFERENZ_IM_SYSTEM_VORHANDENE_DATEN | — | — | Must | — |
| marktlokationsId 00020 | Identification number of a market location at which energy is either consumed or generated | string | X | — |
| gueltigkeitszeitraum | — | object | May | — |
| zeitraumId 00030 | zeitraumId | integer | Must | — |
| zaehlwerke [ ] | — | object[] | May | — |
| obisKennzahl 00040 | The OBIS code for the register, which defines which measured quantity is reported with the reading. Only register readings with this OBIS code are recorded at this register. Example:1-0:1.8.1 for electrical active energy. | string | X | — |
| verwendungszweckLF 00050 | Codes according to the code list of the purposes of use Purpose of use LF | string | X | — |
| verwendungszweckNB 00060 | Codes according to the code list of the purposes of use Purpose of use NB | string | X | — |
| verwendungszweckUENB 00070 | Codes according to the code list of the purposes of use Purpose of use ÜNB | string | X | — |
| wertegranularitaet 00080 | Value granularity | Enum Wertegranularitaet | Must | — |
JAEHRLICH | — | — | Must | — |
HALBJAEHRLICH | — | — | Must | — |
QUARTALSWEISE | — | — | Must | — |
MONATLICH | — | — | Must | — |
| zaehlzeiten | — | object | May | — |
| register 00090 | Metering time period register | string | X | — |
| zaehlzeitDefinition 00100 | Metering time period definition | string | X | — |
| MESSSTELLENBETRIEBSVERTRAG [ ] | — | object[] | May | — |
| vertragskonditionen | — | object | May | — |
| geplanteTurnusablesung | — | object | May | — |
| ableseZeitraum 00110 | ableseZeitraum | string | X | — |
| VERWENDUNGSZEITRAUM [ ] | — | object[] | May | — |
| datenqualitaet 00120 | Data quality | Enum Datenqualitaet | Must | — |
ERWARTETE_DATEN | — | — | Must | — |
IM_SYSTEM_VORHANDENE_DATEN | — | — | Must | — |
INFORMATIVE_DATEN | — | — | Must | — |
GUELTIGE_DATEN | — | — | Must | — |
KEINE_DATEN | — | — | Must | — |
IM_SYSTEM_KEINE_DATEN_VORHANDEN | — | — | Must | — |
KEINE_DATEN_ERWARTET | — | — | Must | — |
DIFFERENZ_DATEN | — | — | Must | — |
DIFFERENZ_ERWARTETE_DATEN | — | — | Must | — |
DIFFERENZ_IM_SYSTEM_VORHANDENE_DATEN | — | — | Must | — |
| verwendungAb 00130 | verwendungAb | string (date-time) | X | — |
| verwendungBis 00140 | verwendungBis | string (date-time) | X | — |
| zeitraumId 00150 | zeitraumId | integer | Must | — |
| transaktionsdaten * | — | object | Must | — |
| anfragereferenznummer 00160 | Reference transaction number 'from request message' / ORDERS RFF+TN / IFTSTA RFF+AAV / INSRPT RFF+TN RFF+AAV | string | X | — |
| dokumentennummer * 00170 | EDIFACT reference from the BGM segment / BGM | string | Must | — |
| kategorie * 00180 | Qualifier from the beginning of the EDIFACT message / BGM | string | Must | — |
| nachrichtendatum * 00190 | Creation date of the EDIFact / DTM+137 | string (date-time) | X | — |
| nachrichtenreferenznummer * 00200 | EDIFACT reference from the UNT segment / UTILMD UNT+21 | string | Must | — |
| pruefidentifikator * 00210 | Contains the check identifier from the EDIFact communication / RFF+Z13 | string | X | — |
| transaktionsgrund * 00220 | The transaction reason describes the business transaction for the category in more detail / UTILMD STS+7++###+ZW4+E03 | string | X | — |
| transaktionsgrundergaenzung * 00230 | Supplement to the transaction reason / UTILMD STS+7++E01+###+E03 | string | X | — |
| vorgangsnummer * 00240 | Number of the transaction / UTILMD UTILTS IDE+24 / INSRPT INVOIC DOC | string | X | — |
| absender * | — | object | Must | — |
| rollencodenummer * 00250 | Specifies the code value of the market role. | string | X | — |
| rollencodetyp * 00260 | Indicates the type of the code. | Enum Rollencodetyp | X | — |
BDEW | — | — | X | — |
GS1 | — | — | X | — |
GLN | — | — | X | — |
DVGW | — | — | X | — |
| antwortStatusZeitraum [ ] | — | object[] | May | — |
| code 00270 | code | string | X | — |
| liste 00280 | liste | string | X | — |
| zeitraumId 00290 | zeitraumId | integer | X | — |
| empfaenger * | — | object | Must | — |
| rollencodenummer * 00300 | Specifies the code value of the market role. | string | X | — |
| rollencodetyp * 00310 | Indicates the type of the code. | Enum Rollencodetyp | X | — |
BDEW | — | — | X | — |
GS1 | — | — | X | — |
GLN | — | — | X | — |
DVGW | — | — | X | — |
Application handbook (AHB)
| Structure (EDIFACT) | Description | Format | 55665 | Condition |
|---|---|---|---|---|
| UNH | — | — | Must | — |
006200010 | Message reference number | — | X | — |
0065 UTILMD00020 | Grid connection master data | — | X | — |
0052 D00030 | Draft version | — | X | — |
0054 11A00040 | Edition 2011 - A | — | X | — |
0051 UN00050 | UN/CEFACT | — | X | — |
0057 S2.200060 | Version number of the underlying BDEW message description | — | X | — |
| BGM | — | — | Must | — |
1001 E0300070 | Change notifications | — | X | [705] |
1001 Z8800080 | Request for data clearing | — | X | [706] |
100400090 | Document number | — | X | — |
| DTM | — | — | Must | — |
2005 13700100 | Document-/ message date/time | — | X | — |
238000110 | Date or time or time span, value | — | X | [931] [494] |
2379 30300120 | CCYYMMDDHHMMZZZ | — | X | — |
| SG2.NAD | — | — | Must | — |
3035 MS00130 | Document/message issuer or sender | — | X | — |
303900140 | MP-ID | — | X | — |
3055 900150 | GS1 | — | X | — |
3055 29300160 | DE, BDEW (Bundesverband der Energie- und Wasserwirtschaft e.V.) | — | X | — |
| SG2.NAD | — | — | Must | — |
3035 MR00170 | Message recipient | — | X | — |
303900180 | MP-ID | — | X | — |
3055 900190 | GS1 | — | X | — |
3055 29300200 | DE, BDEW (Bundesverband der Energie- und Wasserwirtschaft e.V.) | — | X | — |
| SG4.IDE | — | — | Must | — |
7495 2400210 | Transaction | — | X | — |
740200220 | Transaction number | — | X | — |
| SG4.STS | — | — | Must | — |
9015 700230 | Transaction reason | — | X | — |
9013 ZX600240 | Change data of the MaLo | — | X | — |
9013 ZW300250 | Generating market location | — | X | — |
9013 ZW400260 | Consuming market location | — | X | — |
| SG4.STS | — | — | Must | [301] ∧ [557] ∧ [2011] |
9015 E0100270 | Status of the response | — | X | — |
901300280 | Code of the check step | — | X | — |
1131 E_058300290 | EBD no. E_0583 | — | X | — |
901200300 | Time period ID from the change notification of the responsible party | — | X | [914] ∧ [937] ∧ [44] |
| SG5.LOC | — | — | Must | — |
3227 Z1600310 | Market location | — | X | — |
322500320 | ID of the market location | — | X | [950] |
| SG6.RFF | — | — | Must | — |
1153 Z1300330 | Check identifier | — | X | — |
1154 5566500340 | GPKE / Response message / Request for data of the MaLo wMSB to MSB | — | X | — |
| SG6.RFF | — | — | Must | — |
1153 TN00350 | Transaction reference number | — | X | — |
115400360 | Transaction number | — | X | — |
| SG6.RFF | — | — | Must | — |
1153 Z4700370 | Data available in the system | — | X | [5P0..n] |
1153 Z4800380 | Expected data | — | X | [2P0..n] |
1153 Z5400390 | No data available in the system | — | X | [4P0..n] |
1153 Z5500400 | No data expected | — | X | [2P0..n] |
115600410 | Time period ID | — | X | [914] ∧ [937] [127] ⊻ [128] |
| SG6.DTM | — | — | Must | [131] ⊻ [134] ⊻ [135] |
2005 Z2500420 | Data used from | — | X | — |
238000430 | Date or time or time span, value | — | X | [UB1] |
2379 30300440 | CCYYMMDDHHMMZZZ | — | X | — |
| SG6.DTM | — | — | Must | [472] ⊻ [473] |
2005 Z2600450 | Data used until | — | X | — |
238000460 | Date or time or time span, value | — | X | [UB1] |
2379 30300470 | CCYYMMDDHHMMZZZ | — | X | — |
| SG6.RFF | — | — | Must | — |
1153 Z5100480 | Expected date data of the market location | — | X | [2P0..n] |
1153 Z5200490 | Scheduling data of the market location existing in the system | — | X | [3P0..n] |
115400500 | ID of the market location / reference to time period ID | — | X | [914] ∧ [937] [22] |
| SG6.DTM | — | — | Must | [562] |
2005 75200510 | Periodic meter reading | — | X | — |
238000520 | Date or time or time span, value | — | X | — |
2379 10400530 | MMWW-MMWW | — | X | — |
2379 10600540 | MMDD | — | X | — |
| SG8.SEQ | — | — | Must | — |
1229 ZA100550 | Expected OBIS data of the market location | — | X | [2P0..n] |
1229 ZA200560 | OBIS data of the market location existing in the system | — | X | [3P0..n] |
105000570 | Reference to time period ID | — | X | [914] ∧ [937] [22] |
| SG8.PIA | — | — | Must | — |
4347 500580 | Product identification | — | X | — |
714000590 | OBIS code of the market location | — | X | [314] |
7143 SRW00600 | OBIS code | — | X | — |
714300610 | Purpose of use NB | — | X | [381] |
1131 Z1600620 | EDI@Energy code list of purposes of use | — | X | — |
714300630 | Purpose of use LF | — | X | [382] |
1131 Z1600640 | EDI@Energy code list of purposes of use | — | X | — |
714300650 | Purpose of use ÜNB | — | X | [383] |
1131 Z1600660 | EDI@Energy code list of purposes of use | — | X | — |
| SG10.CCI | — | — | Must | — |
7037 ZE400670 | Value granularity | — | X | — |
| SG10.CAV | — | — | Must | — |
7111 ZD900680 | Annually | — | X | — |
7111 ZE800690 | Semi-annual | — | X | — |
7111 ZE900700 | Quarterly | — | X | — |
7111 ZB700710 | Monthly | — | X | — |
| SG10.CCI | — | — | Must | — |
7059 Z3900720 | Code of the metering time period definition | — | X | — |
703700730 | Code of the metering time period definition | — | X | — |
| SG10.CCI | — | — | Must | — |
7059 Z3800740 | Code of the metering time period register | — | X | — |
703700750 | Code of the metering time period register | — | X | — |
| UNT | — | — | Must | — |
007400760 | Number of segments in a message | — | X | — |
006200770 | Message reference number | — | X | — |
Conditions of this table
The free text of the 29 conditions referenced by the rows above. All conditions of the message type are listed in the condition index UTILMDS.
| Marker | Condition |
|---|---|
| [22] | The time period ID from DE1156 of a matching SG6 RFF+Z47/Z48/Z49 (usage period of the data) must be entered |
| [44] | The time period ID from DE1156 of a matching SG6 RFF+Z49/Z53 (usage period of the data: "valid data", "no data") from the request message from SG6 RFF+TN DE1154 ((reference transaction number (from request message)) must be entered |
| [127] | The value resulting from the number of repetitions of the SG6 RFF+Z48/Z55 (usage period of the data: expected data/no data expected) must be entered. This means: the first SG6 RFF+Z48/Z55 thus has the „1“, the second the „2“, the third the „3“, etc. |
| [128] | The value resulting from the number of repetitions of the SG6 RFF+Z47/Z54 (usage period of the data: data present in the system/no data present in the system) must be entered. This means: the first SG6 RFF+Z47/Z54 thus has the „1“, the second the „2“, the third the „3“, etc. |
| [131] | If this DTM+Z25 (use of the data from) in SG6 RFF (usage peri od of the data) is marked with the time period ID "1" in DE1156, the date in this DE2380 must be the day immediately following DTM+137 DE2380 (message dat e) at 0:00, or a day earlier than that at 0:00 German time |
| [134] | If this DTM+Z25 (use of data from) is not in the SG6 RFF+Z48/Z55 (usage period of the data: expected data/no data expected) with time period ID "1" in DE1156, the date must correspond to the DTM+Z26 (use of data until) of the SG6 RFF+Z48/Z55 (usage period of the data: expected data/no data expected) with the next lower time period ID in DE1156 |
| [135] | If this DTM+Z25 (use of the data from) is not in SG6 RFF+Z47/Z54 (usage perio d of the data: data present in the system/no data present in the system) with the time period ID "1" in DE1156, the date must correspond to the DTM+Z26 (use of the data until) of the SG6 RFF+Z47/Z54 (usage perio d of the data: data present in the system/no data present in the system) with the next lower time period ID in DE1156 |
| [301] | If BGM+E03 (change notification ) present |
| [314] | All OBIS codes in accordance with the code list of OBIS codes and media, chapter 3, that are required at the market location must be stated. The minimum scope of the OBIS codes results from the metering product codes stated in chapter 5.1 of the document Code list of configurations |
| [381] | Only codes from the „Code“ column of the code list of purposes of use (chapter 2) are permitted, provided that an „X“ is set in the same row both in the „Location/MaLo“ column and in the „Usable for market role/NB“ column and the statements in the „Explanation“ column match the OBIS code specified in DE7140 of the same PIA |
| [382] | Only codes from the „Code“ column of the code list of purposes of use (chapter 2) are permitted, provided that an „X“ is set in the same row both in the „Location/MaLo“ column and in the „Usable for market role/LF“ column and the statements in the „Explanation“ column match the OBIS code specified in DE7140 of the same PIA |
| [383] | Only codes from the „Code“ column of the code list of purposes of use (chapter 2) are permitted, provided that an „X“ is set in the same row both in the „Location/MaLo“ column and in the „Usable for market role/ÜNB“ column and the statements in the „Explanation“ column match the OBIS code specified in DE7140 of the same PIA |
| [472] | If a time period ID is named in DE1156 (time period ID) in the same SG6 RFF+Z48/Z55 (usage period of the data: expected data/no data expected) which is lower than in another SG6 RFF+Z48/Z55 (usage period of the data: expected data/no data expected) DE1156 (time period ID) |
| [473] | If a time period ID is named in DE1156 (time period ID) in the same SG6 RFF+Z47/Z54 (usage period of the data: data present in the system/no data present in the system) which is lower than in another SG6 RFF+Z47/Z54 (usage period of the data: data present in the system/no data present in the system) DE1156 (time period ID) |
| [494] | The date stated here must be the point in time at which the document was created, or a point in time before that |
| [557] | Note: If the responsible party has sent more than eight usage periods, eight arbitrary usage periods are answered |
| [562] | Note: For market locations that are balanced on the basis of values, the first day of the year is specified. |
| [705] | Note: If the action of a sequence diagram "Response message on change" is carried out |
| [706] | Note: If the action of a sequence diagram "Order placement of a change of master data..." is carried out with the aim of performing a data clearing |
| [914] | Format: Possible value: > 0 |
| [931] | Format: ZZZ = +00 |
| [937] | Format: no decimal places |
| [950] | Format: market location ID |
| [2011] | Segment group must be specified exactly once for each time period ID from DE1156 of the SG6 RFF+Z49 / Z53 (usage period of the data: "Valid data" / "No data") from the request message from SG6 RFF+TN DE1154 (reference transaction number (from request message)) |
| [5P0..n] | [315] If BGM+Z88 (data clearing) present [20 13 ] To be specified at least once , if no SG6 RFF+Z54 (Usage period of the data: no data present in the system) present |
| [2P0..n] | [301] If BGM+E03 (change notification) present [315] If BGM+Z88 (data clearing) present |
| [4P0..n] | [315] If BGM+Z88 (data clearing) present [20 14 ] To be specified at least once , if no SG6 RFF+Z47 (Usage period of the data: data present in the system) present |
| [UB1] | ([931] ∧ [932] [490]) ⊻ ([931] ∧ [933] [491]) |
| [3P0..n] | [315] If BGM+Z88 (data clearing) present |
Example message
UNA:+.? '
UNB+UNOC:3+9904446000007:500+9904446000007:500+{{date}}:{{time}}+LZVP49BO'
UNH+UNHM0BD7PPO+UTILMD:D:11A:UN:S2.2'
BGM+E03+BGMM00H0YBO'
DTM+137:202610021100?+00:303'
NAD+MS+9904446000007::293'
NAD+MR+9904446000007::293'
IDE+24+123456'
STS+7++ZX6+ZW4'
STS+E01++A01:E_0583::1'
LOC+Z16+50074561188'
RFF+Z13:55665'
RFF+TN:ABC123456'
UNT+12+UNHM0BD7PPO'
UNZ+1+LZVP49BO'[1 item
{6 fields
"businessKey": "<businessKey>",
"processDate": null,
"dataSource": "OUTBOUND",
"version": 1,
"edifactVersion": 202610,
"data": {3 fields
"stammdaten": {1 field
"MARKTLOKATION": [1 item
{5 fields
"boTyp": "MARKTLOKATION",
"versionStruktur": "1",
"marktlokationsId": "50074561188",
"marktlokationsTyp": [1 item
{1 field
"typ": "STANDARD_MARKTLOKATION"
}
],
"sparte": "STROM"
}
]
},
"transaktionsdaten": {14 fields
"datenaustauschreferenz": "LZVP49BO",
"sparte": "STROM",
"transaktionsgrund": "ZX6",
"transaktionsgrundergaenzung": "ZW4",
"vorgangsnummer": "123456",
"pruefidentifikator": "55665",
"absender": {5 fields
"boTyp": "MARKTTEILNEHMER",
"versionStruktur": "1",
"gewerbekennzeichnung": true,
"rollencodenummer": "9904446000007",
"rollencodetyp": "BDEW"
},
"empfaenger": {5 fields
"boTyp": "MARKTTEILNEHMER",
"versionStruktur": "1",
"gewerbekennzeichnung": true,
"rollencodenummer": "9904446000007",
"rollencodetyp": "BDEW"
},
"dokumentennummer": "BGMM00H0YBO",
"kategorie": "E03",
"nachrichtendatum": "2026-10-02T11:00:00Z",
"nachrichtenreferenznummer": "UNHM0BD7PPO",
"anfragereferenznummer": "ABC123456",
"antwortStatusZeitraum": [1 item
{3 fields
"code": "A01",
"liste": "E_0583",
"zeitraumId": 1
}
]
},
"zusatzdaten": {}
}
}
]
Download: EDIFACT file · BO4E JSON
Belongs to these role views
The check identifier itself carries no market role. This assignment is derived back from the role views in whose process steps it occurs — affected are LF, NB, MSB and ÜNB.
| Role | Party involved | Process | Rulebook | Division | Step |
|---|---|---|---|---|---|
| LF | LF | Order placement for a master data change to the MSB (responsible) | GPKE part 4 | Electricity | Step 5 |
| LF | LF | Master data change initiated by the MSB (responsible) | GPKE part 4 | Electricity | Step 8 |
| NB | NB | Order placement for a master data change to the MSB (responsible) | GPKE part 4 | Electricity | Step 5 |
| NB | NB | Master data change initiated by the MSB (responsible) | GPKE part 4 | Electricity | Step 8 |
| MSB | MSB | Order placement for a master data change to the MSB (responsible) | GPKE part 4 | Electricity | Step 5 |
| MSB | MSB | Master data change initiated by the MSB (responsible) | GPKE part 4 | Electricity | Step 8 |
| MSB | WMSB | Order placement for a master data change to the MSB (responsible) | GPKE part 4 | Electricity | Step 5 |
| MSB | WMSB | Master data change initiated by the MSB (responsible) | GPKE part 4 | Electricity | Step 8 |
| ÜNB | ÜNB | Order placement for a master data change to the MSB (responsible) | GPKE part 4 | Electricity | Step 5 |
| ÜNB | ÜNB | Master data change initiated by the MSB (responsible) | GPKE part 4 | Electricity | Step 8 |
Business classification
| Attribute | Value |
|---|---|
| Use case (AHB) | Response message/request data of the MaLo |
| AHB | UTILMD AHB electricity |
| Response to check identifier | 55660 |
| Decision tree | E_0583 |
| Transmission channel | AS4 |
This check identifier is used in 2 contexts
Regulatory determination and communication direction depend on the process in which the message is sent. A single entry would be misleading — all placements are therefore listed here.
| Process description / rulebook | Process step | Communication | Action |
|---|---|---|---|
| GPKE part 4 | Master data change initiated by the MSB (responsible) | further MSB → MSB | Response message on change |
| GPKE part 4 | Order placement for master data change to MSB (responsible) | further MSB → MSB | Order placement of a change of master data from the further MSB to MSB |
Transaction and responses
Role of this check identifier: response message. Basis: the title or the action of the Prüfi table begins with “response message”. A response message carries no status field and is not a response in the sense of a decision tree.
Responses: No response of this format version names this check identifier as a reference — neither explicitly in the Prüfi table nor via the step sequence. That does not mean there is none; it means that the sources do not record one.
Check identifiers of the same AHB table: No other check identifier of message type UTILMDS has the same row structure in this version.
Editorial — not derived from a source
The period ID of this response comes from the request. Condition [44] requires in STS DE9012: »Es ist die Zeitraum-ID vom DE1156 aus einem passenden SG6 RFF+Z49/Z53 … einzutragen« (the period ID from DE1156 of a matching SG6 RFF+Z49/Z53 of the request). In the JSON it is in transaktionsdaten.antwortStatusZeitraum → zeitraumId (SG4.IDE+24.STS+E01). Its value is the zeitraumId of the request's usage period that the response refers to: stammdaten.VERWENDUNGSZEITRAUM → zeitraumId (SG4.IDE+24.SG6.RFF+[Z49|Z53]).
Source: UTILMD AHB electricity (Knowledge Collection ahb/202604/UTILMDS and ahb/202610/UTILMDS), condition [44] at SG4 STS DE9012; segment mapping of the zeitraumId fields in the check identifier specifications · As of: 2026-09-23 · Applies to format version: 202604, 202610 · To be reviewed by: 2027-04-01
Notes on this page
An * after a field or group name marks a mandatory field or a mandatory group. The type is beside it; where the value ends up in the EDIFACT segment is shown by the info icon next to the field name.
The status column carries two vocabularies because the manual answers two questions: on a group row, Muss, Soll or Kann states whether the EDIFACT segment must be present; on a field row, X states that this qualifier is used in this check identifier. Both are kept exactly as the source records them.
For this check identifier, the application handbook lists 100 rows. They appear in the order of the handbook, indented by segment: a row without a data element opens a segment, the rows below it are its data elements.
The Condition column names the markers under which the handbook ties a row to a prerequisite; their free text is below the table.
The test data contains one transaction for this check identifier under the message type utilmd. Each is stored twice — as a EDIFACT message and as a BO4E JSON. That both representations show the same transaction has been recalculated, not assumed: interchange control reference, message reference number, document number, message date, sender and recipient match in all 517 pairs of the format version; check identifier, transaction number and location ID wherever both representations carry them. Not a single attribute contradicts.
Placeholder from the test data set
The test data set carries placeholders instead of valid values: {{date}} and {{time}} in the UNB interchange envelope of every EDIFACT file. The page replaces these on call with the current date and the current time — in the format that applies at the respective position: in the envelope year, month and day as well as hour and minute, two digits each.
<businessKey> stays in place. It is not a time value, and an invented key would look like a valid one.