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The local time is 17:10, on the 23rd of April. What is the correct readback for a time check?

  • A

    One seven one zero.

  • B

    One seven one one.

  • C

    One seven one zero UTC.

  • D
    Seventeen ten.

ICAO Annex 10, Volume II

5.2.1.4.1.4 PANS.— When transmitting time, only the minutes of the hour should normally be required. Each digit should be pronounced separately. However, the hour should be included when any possibility of confusion is likely to result.

Note.— The following example illustrates the application of this procedure when applying the provisions of 5.2.1.2.2:

Time

Statement

0920 (9:20 A.M.)

TOO ZE-RO
or ZE-RO NIN-er TOO ZE-RO

1643 (4:43 P.M.)

FOW-er TREE
or WUN SIX FOW-er TREE


ICAO Annex 10
Volume II - Chapter 3

3.4 TIME SYSTEM
3.4.1 Coordinated Universal Time (UTC) shall be used by all stations in the aeronautical telecommunication service. Midnight shall be designated as 2400 for the end of the day and 0000 for the beginning of the day.

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