2100 military time is 9:00 PM
2100 in military time is 9:00 PM, at night. It is said “twenty-one hundred”.
- Say it
- “twenty-one hundred”, informally “” (common usage; no manual spells out 0000 to 0059)
- 24-hour clock
- 21:00
How to convert 2100 to standard time
- The hour is 21, which is more than 12, so it is after noon (PM).
- Subtract 12 from the hour: 21 − 12 = 9. Keep the minutes (00) and add PM: 9:00 PM.
And the other way: 9:00 PM in military time is 2100: add 12 to the hour (9 + 12 = 21) and leave out the colon and PM.
How to say 2100
Say “twenty-one hundred”. Spoken, “hours” often follows: “twenty-one hundred hours”. In writing, the Army and Air Force leave “hours” out. How military time is said and written.
- Military time
- 2100
- Standard time
- 9:00 PM
- 24-hour clock
- 21:00
- Part of the day
- Night
2100 with a time zone
On its own, 2100 is a local time: 2100 in New York is 9:00 PM in New York. Written with a Z, as 2100Z, it is Zulu time (UTC), which in US time zones is:
| 2100Z in | Daylight time (March to November) | Standard time (November to March) |
|---|---|---|
| EasternNew York | 1700 5:00 PMUTC−4 · Q | 1600 4:00 PMUTC−5 · R |
| CentralChicago | 1600 4:00 PMUTC−5 · R | 1500 3:00 PMUTC−6 · S |
| MountainDenver | 1500 3:00 PMUTC−6 · S | 1400 2:00 PMUTC−7 · T |
| PacificLos Angeles | 1400 2:00 PMUTC−7 · T | 1300 1:00 PMUTC−8 · U |
US daylight time runs from the second Sunday in March to the first Sunday in November (NIST). Any Zulu time: Zulu time now.
Times around 2100
Every quarter of this hour: 2100 · 2115 · 2130 · 2145
Questions people ask
What is 2100 in military time?
2100 in military time is 9:00 PM, at night.
How do you say 2100 in military time?
Say “twenty-one hundred”. Spoken, “hours” often follows: “twenty-one hundred hours”. In writing, the Army and Air Force leave “hours” out.
What is 9:00 PM in military time?
9:00 PM in military time is 2100: add 12 to the hour (9 + 12 = 21) and leave out the colon and PM.
What is 2100Z in Eastern time?
2100Z (Zulu, which is UTC) is 1700 (5:00 PM) in Eastern Daylight Time and 1600 (4:00 PM) in Eastern Standard Time.
All the hours and minutes of the day are in the military time chart.