1. MILITARY TIME
THE 24 HOUR CLOCK

2. THE TWENTY-FOUR-HOUR CLOCK
THE MILITARY SERVICES AND CIVILIANS USE DIFFERENT METHODS OF EXPRESSING TIME. ALL CADETS SHOULD LEARN THIS METHOD, CALLED MILITARY TIME OR THE TWENTY-FOUR-HOUR CLOCK.

3. A.M. P.M. HOW WE EXPRESS TIME
IN CIVILIAN LIFE, WE CONVEY TIME TO ONE ANOTHER BY USING:
A.M. OR
P.M.

4. WHEN WE SAY OR WRITE 8 A.M., WE MEAN..
EIGHT O’CLOCK IN THE MORNING
WE WRITE THIS AS..
8 A.M.

5. ANTE MERIDIEM OR BEFORE NOON (Or before the middle of the day)
“A.M.” MEANS..
ANTE MERIDIEM OR
BEFORE NOON
(Or before the middle of the day)

6. WHEN WE SAY OR WRITE 8 P.M., WE MEAN..
EIGHT O’ CLOCK AT NIGHT
WE WRITE THIS AS..
8 P.M.

7. (Or after the middle of the day)
PM MEANS..
POST MERIDIEM OR
AFTER NOON
(Or after the middle of the day)

8. 45 MINUTES AFTER EIGHT O’CLOCK IN THE MORNING, OR..
TO GIVE THE EXACT TIMES
WE ATTACH THE MINUTES AFTER THE HOUR, SUCH AS..
8:45 A.M. WHICH MEANS:
45 MINUTES AFTER EIGHT O’CLOCK IN THE MORNING, OR..

9. WHICH MEANS: 45 MINUTES AFTER EIGHT O’CLOCK AT NIGHT
8:45 P.M.
WHICH MEANS:
45 MINUTES AFTER EIGHT O’CLOCK AT NIGHT

10. WE GIVE SPECIAL NAMES TO 12 A.M. AND 12 P.M.
WE CALL 12 A.M.
MIDNIGHT
AND WE CALL 12 P.M.
NOON

11. THIS SYSTEM WORKS FINE IN CIVILIAN LIFE
IN THE MILITARY, SUCH A SYSTEM WOULD BE CONFUSING AND CAUSE MANY PROBLEMS.
THE MILITARY WORKS ALL OVER THE WORLD, IN MANY DIFFERENT TIME ZONES.

12. WE CAN NOT AFFORD MISTAKES IN COMMUNICATING THE CORRECT TIME.

13. NAVY COMMUNICATIONS ARE BY MESSAGE OR RADIO
TIMES SENT BY THIS METHOD COULD BE GARBLED OR HAVE STATIC INTERFERENCE OR NOT BE UNDERSTOOD BECAUSE OF BATTLE NOISES.

14. NAVY COMMUNICATIONS ARE BY MESSAGE OR RADIO
TYPED AND WRITTEN MESSAGES CAN ALSO HAVE COMMON MISTAKES IN TIME.

15. RESULTS!
BATTLES AND LIVES COULD BE LOST BECAUSE AN IMPORTANT EVENT WAS NOT ON TIME!

16. TIME IS ALSO ESSENTIAL TO NAVIGATION
THE SHIP’S NAVIGATOR MUST KEEP ACCURATE TIME TO FIX THE SHIP’S POSITION.

17. WATCH AND LOG ENTRIES
ALMOST EVERY RECORD OF ANY TYPE ON A SHIP IS RECORDED WITH ACCURATE TIMES, 24 HOURS A DAY.

18. THE MILITARY MUST HAVE A SYSTEM THAT CAN NOT BE MISUNDERSTOOD!!
MILITARY TIME
THE MILITARY MUST HAVE A SYSTEM THAT CAN NOT BE MISUNDERSTOOD!!

19. THIS MEANS HAVING AN EXACT TIME FOR EVERY HOUR AND MINUTE OF THE DAY.

20. EXPLAINING THE 24-HOUR-CLOCK
IN THE MILITARY TIME SYSTEM, WE DO AWAY WITH :
A.M.
AND
P.M.

21. YOU WILL RECOGNIZE DAY OR NIGHT BY THE HOUR ITSELF.
EIGHT O’CLOCK IN THE MORNING CAN NOT BE CONFUSED WITH EIGHT O’CLOCK AT NIGHT!
WE ALSO ELIMINATE USING THE EXPRESSION “O’CLOCK.”

22. EACH HOUR AND EACH MINUTE OF THE DAY HAS ITS OWN NUMBER.
HOW IT WORKS!
EACH HOUR AND EACH MINUTE OF THE DAY HAS ITS OWN NUMBER.
EACH DAY STARTS AT A FRACTION OF A SECOND AFTER MIDNIGHT. THIS TIME IS CALLED :
0000

23. ONE O’ CLOCK IN THE MORNING IS
0100,
PRONOUNCED
ZERO ONE HUNDRED.

24. TWO O’CLOCK IN THE MORNING IS
0200,
PRONOUNCED
ZERO TWO HUNDRED

25. THE MORNING HOURS CONTINUE AS FOLLOWS:
3 O’CLOCK ZERO THREE HUNDRED
4 O’CLOCK ZERO FOUR HUNDRED
5 O’CLOCK ZERO FIVE HUNDRED
AND SO ON UNTIL TEN O’CLOCK IN THE MORNING , WHICH IS 1000.
PRONOUNCED TEN HUNDRED.

26. PRONOUNCED TWELVE HUNDRED.
ELEVEN O’CLOCK IS 1100 OR
ELEVEN HUNDRED
AND NOON IS
1200
PRONOUNCED TWELVE HUNDRED.

27. 1300 THIRTEEN HUNDRED THE AFTERNOON HOURS
THE HOUR FOLLOWING 1200 OR NOON IS:
1300
IN CIVILIAN TIME THAT WAS 1:00 PM
IN MILITARY TIME IT IS
THIRTEEN HUNDRED

28. AFTERNOON TIMES CONTINUE:
2 PM OR FOURTEEN HUNDRED
3 PM OR FIFTEEN HUNDRED
4 PM OR SIXTEEN HUNDRED
5 PM OR SEVENTEEN HUNDRED
THIS SEQUENCE CONTINUES UNTIL ELEVEN O’CLOCK AT NIGHT WHICH IS :
2300

29. THE DAY ENDS AT MIDNIGHT
WHICH THE MILITARY CALLS:
2400 OR
0000
THE CLOCK TURNS OVER AT 2400 AND BECOMES 0000

30. HOURS ON THE MILITARY CLOCK
0000 OR (MIDNIGHT)
O’CLOCK IN THE MORNING
O’CLOCK IN THE MORNING
O’CLOCK IN THE MORNING
O’CLOCK IN THE MORNING
O’CLOCK IN THE MORNING
O’CLOCK IN THE MORNING

31. O’CLOCK IN THE MORNING
O’CLOCK IN THE MORNING
O’CLOCK IN THE MORNING
O’CLOCK IN THE MORNING
O’CLOCK IN THE MORNING
O’CLOCK NOON
O’CLOCK IN THE AFTERNOON
O’CLOCK IN THE AFTERNOON
O’CLOCK IN THE AFTERNOON

32. 1600 4 O’CLOCK IN THE AFTERNOON
O’CLOCK IN THE EVENING
O’CLOCK IN THE EVENING
O’CLOCK IN THE EVENING
O’CLOCK IN THE EVENING
O’CLOCK IN THE EVENING
O’CLOCK IN THE EVENING

33. PUTTING THE MINUTES INTO THE TIME
MINUTES ARE USED THE SAME WAY AS THEY WERE WITH CIVILIAN TIME:
45 MINUTES AFTER EIGHT IN THE MORNING WOULD BE:
0845

34. 10 MINUTES AFTER ELEVEN IN THE MORNING WOULD READ: 1110
30 MINUTES AFTER ONE IN THE AFTERNOON WOULD READ:
1330
10 MINUTES BEFORE MIDNIGHT WOULD READ:
2350

35. FIRST MINUTES OF THE DAY
REMEMBER - MIDNIGHT IS 2400 OR 0000
ONE MINUTE AFTER MIDNIGHT IS
0001
TEN MINUTES AFTER MIDNIGHT IS 0010

36. A HINT FOR REMEMBERING MILITARY TIME
AFTERNOON TIMES CAN BE CONVERTED BY ADDING 12
EXAMPLE
3:15 P.M.
ADD 3: = 1515

37. TIMES BEFORE NOON ARE JUST AS THEY APPEAR
7:OO A.M. BECOMES
0700
8:25 A.M. BECOMES
0825

38. INSTANT REVIEW
CONVERT THE FOLLOWING CIVILIAN TIMES INTO MILITARY TIMES:
30 MINUTES AFTER SEVEN IN THE MORNING:
ANSWER:
0730

39. 2:05 IN THE AFTERNOON
ANSWER:
1405
9:20 AT NIGHT
2120

40. 0NE MINUTE BEFORE MIDNIGHT
ANSWER:
2359
ONE MINUTE AFTER MIDNIGHT
0001

41. ONE O’CLOCK IN THE MORNING?
ANSWER:
0100
HOW IS THIS PRONOUNCED?
ZERO ONE HUNDRED

42. WHICH OF THE FOLLOWING IS INCORRECT?
ANSWER:
2401
At 2400 the day ends.

43. WHAT IS AN EASY WAY TO CONVERT CIVILIAN TIMES IN THE AFTERNOON TO MILITARY TIME?
ANSWER:
ADD 12 TO THE TIME;
EXAMPLE:
4:05 P.M = 1605

44. THIS ENDS THIS PRESENTATION