Question

Is 12:30 equivalent to 16:40

Answer 1

they're not the same time. 12:30 ='s 13:30
below is the time that we use and the time thats equal to it in Navy time:
12:30 = 12:30
1:30 = 13:30
2:30 = 14:30
3:30 = 15:30
4:30 = 16:30
5:30 = 17:30
6:30 = 18:30
7:30 = 19:30
8:30 = 20:30
9:30 = 21:30
10:30 = 22:30
11:30 = 23:30

Answer 2

if the difference (i.e. subtraction) between the two values is zero, then the answer is yes, they are the same . . .

16:40 = 16 hours and 40 min
12:30 = 12 hours and 30 min

(16h + 40m) - (12h + 30m)

(16h - 12h) + (40m - 30m)

(4h) + (10m)

4h + 10m

4:10 > 0:00 . . . so the answer is no, they are not the same