Military Time
I have inserted a military time table below because I know there are math problems that involve such these time conversions. To help you convert, you can simply study the chart or calculate it yourself as I will review as well.
Quick Facts:
- Military time is used in hospital settings
- Military and regular time express minutes and seconds the same way but hours are expressed differently
- When expressed by minutes or seconds in military time it divides the time in colons such as
1300:42 (1300 = hour and 42 = minutes) > 1:42 pm
1300:42:10 (1300 = hour, 42 = minutes, and 10 = seconds)
- 00 equals to midnight in military time as you can see it in the chart below, so lets use an example 0005 > This means it's 12:05 am in regular time
Regular Time | Military Time | Regular Time | Military Time |
Midnight | 0000 | Noon | 1200 |
1:00 a.m. | 0100 | 1:00 p.m. | 1300 |
2:00 a.m. | 0200 | 2:00 p.m. | 1400 |
3:00 a.m. | 0300 | 3:00 p.m | 1500 |
4:00 a.m. | 0400 | 4:00 p.m. | 1600 |
5:00 a.m. | 0500 | 5:00 p.m. | 1700 |
6:00 a.m. | 0600 | 6:00 p.m. | 1800 |
7:00 a.m. | 0700 | 7:00 p.m. | 1900 |
8:00 a.m. | 0800 | 8:00 p.m. | 2000 |
9:00 a.m. | 0900 | 9:00 p.m. | 2100 |
10:00 a.m. | 1000 | 10:00 p.m. | 2200 |
11:00 a.m. | 1100 | 11:00 p.m. | 2300 |
This is how to calculate without looking at the chart!
Converting regular time to military time in pm:
Add 12
[EX] 5 pm
5 :00
+ 12:00
17 : 00 in military time
[EX] 7 pm
7:00
+ 12:00
19:00 in military time
We won't have to use this method to convert regular time in am to military time because as you can see in the chart it seems very simple to express. 6 am is expressed 0600, 7 am is expressed 0700, and so on.
Converting military time to regular time in pm:
Substract 12
[EX] 1700
17:00
- 12:00
5:00 pm in regular time
[EX] 1900
19:00
- 12:00
7:00 pm in regular time
Let's use a math question that involves military time
- Rx: Drug "A" 250mg/5ml
# 150 ml
Sig: i tbsp 0800, i tbsp 2000 2d
What is the day supply?
*1 tbsp = 15ml, so he is taking two doses of 15ml. 15ml + 15ml = 30ml x 2day = 60 ml total
*150 ml / 60 ml = 3 day supply
How far apart (in hrs) is his second dose?
0800 = 8am
2000 = 8pm ---> 20:00
- 12:00
8:00 pm
*Second dose is 12 hours apart