12 hour clock but could say the time in a 24 hour clock Analogue describes construction, not hours. It can be either.
The difference between 12 hour clock and a 24 hour clock is that when you say 1:00am for a 12 hour clock you would say 0100 hours
12 o'clock is midday on a 24 hour clock.
5+12 is 17:00 in 24 hour clock
16:00 is 4pm on a 24 hour clock.
12 hour clock's have am and pm. 24 hour clock's (military time) is 00:00 through 23:59. Midnight on a 12 hour clock is 12:00am, on a 24 hour clock is 00:00. So 23:59 would be 11:59pm.
A twelve hour clock has 1,2,3,4,5,6,7,8,9,10,11,12 and is the standard form time clock. A 24 hour clock has times starting at 1-12, but after it will start with 13 as 1 p.m. all the way to 24 or 00 as 12 midnight.
24 Hour is used in all countries except the united states of america
12 hour clock we use in our homes.24 hour clock is used in travelling places eg:airport,train station.
That means you probably have a 24 hour clock.