Page 18 - GEN - 2025

3.3 Transmission of Time

All time references should be made in Co-ordinated Universal Time (UTC) and

using the 24 hour clock. This time zone is sometimes referred to as Zulu (Z). 2400

is midnight and 0001 begins the new day.

When transmitting time, only the minutes of the hour are normally required.

However, the hour should be included if there is any possibility of confusion.

Time Transmitted as Pronounced as

0803 ZERO THREE or ZE-RO TREE or
ZERO EIGHT ZERO THREE ZE-RO AIT ZE-RO TREE
1300 ONE THREE ZERO ZERO WUN TREE ZE-RO ZE-RO

2057 FIVE SEVEN or FIFE SEVen or
TWO ZERO FIVE SEVEN TOO ZE-RO FIFE SEVen

Pilots may check the time with the appropriate ATS unit. Time checks shall be

given to the nearest half minute.

3.4 Examples

CALL SIGN, HEADING, RUNWAY AND WIND
aircraft call signs transmitted as
CCA 238 Air China two three eight
OAL 242 Olympic two four two
runway transmitted as
27 runway two seven
30 runway three zero

wind direction and speed transmitted as
200 degrees 70 knots wind two zero zero degrees seven zero
knots
160 degrees 18 knots gusting wind one six zero degrees one eight
30 knots knots gusting three zero knots
FLIGHT LEVELS
The following examples
illustrate the application transmitted as
flight levels
FL 180 flight level one eight zero
FL 200 flight level two hundred

GEN radio 2025 - Midtjysk Flyveskole 18