What is 0821 in Military Time?
0821 military time equals
8:21 AM
How to Convert 0821
0821 falls in the morning half of the 24-hour clock, so the rule is: the hour matches standard time — just add AM.
8 = 8 → 8:21 AM — morning hours match directly (the minutes, 21, stay exactly the same).
Going the other way: 8:21 AM = 0821 — drop the AM and pad single-digit hours with a leading zero. Or skip the math — type 0821 into the military time converter and convert any time instantly on the home page.
Times Around 0821
See the whole day on one page: Military Time Chart or view the full 24-hour chart.
All Times From 0800 to 0859
Every minute of this hour has its own quick answer page:
- 0800 8:00 AM
- 0801 8:01 AM
- 0802 8:02 AM
- 0803 8:03 AM
- 0804 8:04 AM
- 0805 8:05 AM
- 0806 8:06 AM
- 0807 8:07 AM
- 0808 8:08 AM
- 0809 8:09 AM
- 0810 8:10 AM
- 0811 8:11 AM
- 0812 8:12 AM
- 0813 8:13 AM
- 0814 8:14 AM
- 0815 8:15 AM
- 0816 8:16 AM
- 0817 8:17 AM
- 0818 8:18 AM
- 0819 8:19 AM
- 0820 8:20 AM
- 0821 8:21 AM
- 0822 8:22 AM
- 0823 8:23 AM
- 0824 8:24 AM
- 0825 8:25 AM
- 0826 8:26 AM
- 0827 8:27 AM
- 0828 8:28 AM
- 0829 8:29 AM
- 0830 8:30 AM
- 0831 8:31 AM
- 0832 8:32 AM
- 0833 8:33 AM
- 0834 8:34 AM
- 0835 8:35 AM
- 0836 8:36 AM
- 0837 8:37 AM
- 0838 8:38 AM
- 0839 8:39 AM
- 0840 8:40 AM
- 0841 8:41 AM
- 0842 8:42 AM
- 0843 8:43 AM
- 0844 8:44 AM
- 0845 8:45 AM
- 0846 8:46 AM
- 0847 8:47 AM
- 0848 8:48 AM
- 0849 8:49 AM
- 0850 8:50 AM
- 0851 8:51 AM
- 0852 8:52 AM
- 0853 8:53 AM
- 0854 8:54 AM
- 0855 8:55 AM
- 0856 8:56 AM
- 0857 8:57 AM
- 0858 8:58 AM
- 0859 8:59 AM
When You'll See 0821
Mid-morning. Clinics book first appointments from 0800, so 0821 (8:21 AM) is a classic slot on appointment reminders, outpatient schedules, and meeting invites that use the 24-hour clock.
To say it out loud, read the two pairs: "zero eight twenty-one." In formal military usage you may also hear "zero eight hundred twenty-one hours."
Frequently Asked Questions
Is 0821 AM or PM?
AM. Any military time from 0000 to 1159 is before noon. 0821 = 8:21 AM.
How do you say 0821 in military time?
"Zero eight twenty-one." Whole hours get the "hundred" treatment (0800 is "zero eight hundred"), but with minutes you read the two pairs.
What is 8:21 AM in military time?
0821. Morning hours match directly: drop the AM and pad to four digits.
Is 0821 the same as 8:21?
Yes — same time, two writing styles. Schedules in military format drop the colon (0821); European-style 24-hour clocks keep it (8:21). Both mean 8:21 AM.