This message should be used when a station is requesting UTC and date from another station.
| Parameter | Number of bits | Description |
|---|---|---|
| Message ID | 6 | An identifier for Message 10; always 10 |
| Repeat indicator | 2 | Used by the repeater to indicate how many times a message has been repeated. 0 = default; 3 = do not repeat any more |
| Source ID | 30 | MMSI number of station which inquires UTC |
| Spare | 2 | Not used. Should be set to zero. Reserved for future use. |
| Destination ID | 30 | MMSI number of station which is inquired |
| Spare | 2 | Not used. Should be set to zero. Reserved for future use. |
| Number of bits | 72 |
(Source: Rec. ITU-R M.1371-5)