1540 military time
1540 = 3:40 PM
1540 is 40 minutes past 3 in the afternoon. With a colon it is 15:40.
Convert another time
How to read 1540
1540 is after noon, so subtract 12 from the hours: 15 − 12 = 3. Keep the minutes (40) and add PM: 3:40 PM.
For hours 13 to 19, ignore the 1 and take 2 from the second digit: 15 gives 5 − 2 = 3, PM.
1540 falls in the afternoon: 15 hours and 40 minutes after midnight, 65.3% of the way through the day, with 8 hours and 20 minutes left until the next midnight.
How to say it
Pilots and air traffic controllers say each digit: “one five four zero”. Off the radio, people usually read 1540 as two numbers.
Counting hours to and from 1540
Start and end times on a timesheet come down to this subtraction. The decimal column is the form many payroll systems want; the minutes to decimal chart covers every minute.
| Start | Length | Decimal |
|---|---|---|
| 0600 | 9 h 40 min | 9.67 |
| 0700 | 8 h 40 min | 8.67 |
| 0800 | 7 h 40 min | 7.67 |
| 0900 | 6 h 40 min | 6.67 |
| Add | Military | 12-hour |
|---|---|---|
| 1 h | 1640 | 4:40 PM |
| 2 h | 1740 | 5:40 PM |
| 4 h | 1940 | 7:40 PM |
| 8 h | 2340 | 11:40 PM |
| 10 h | 0140 | 1:40 AM (next day) |
| 12 h | 0340 | 3:40 AM (next day) |
1540Z: the same moment in other time zones
Written 1540Z, the time is in UTC, and the local clock depends on the zone and the season.
| Zone | Standard time | Summer time |
|---|---|---|
| US Eastern (New York) | 10:40 AM UTC−5 | 11:40 AM UTC−4 |
| US Central (Chicago) | 9:40 AM UTC−6 | 10:40 AM UTC−5 |
| US Mountain (Denver) | 8:40 AM UTC−7 | 9:40 AM UTC−6 |
| US Pacific (Los Angeles) | 7:40 AM UTC−8 | 8:40 AM UTC−7 |
| Alaska (Anchorage) | 6:40 AM UTC−9 | 7:40 AM UTC−8 |
| Hawaii (Honolulu) | 5:40 AM UTC−10 | no change |
| UK (London) | 3:40 PM UTC+0 | 4:40 PM UTC+1 |
| Central Europe (Berlin) | 4:40 PM UTC+1 | 5:40 PM UTC+2 |
| India | 9:10 PM UTC+5:30 | no change |
| Japan and South Korea | 12:40 AM (next day) UTC+9 | no change |
| Australia East (Sydney) | 1:40 AM (next day) UTC+10 | 2:40 AM (next day) UTC+11 |
For a particular date and city, use the time zone converter, which applies the exact daylight saving dates.
Nearby military times
The full chart is on the military time page.