2100 to 2159: every minute of the hour
The first two digits stay 21; the last two are the minutes.
| Military | Standard |
|---|---|
| 2100 | 9:00 p.m. |
| 2101 | 9:01 p.m. |
| 2102 | 9:02 p.m. |
| 2103 | 9:03 p.m. |
| 2104 | 9:04 p.m. |
| 2105 | 9:05 p.m. |
| 2106 | 9:06 p.m. |
| 2107 | 9:07 p.m. |
| 2108 | 9:08 p.m. |
| 2109 | 9:09 p.m. |
| 2110 | 9:10 p.m. |
| 2111 | 9:11 p.m. |
| 2112 | 9:12 p.m. |
| 2113 | 9:13 p.m. |
| 2114 | 9:14 p.m. |
| Military | Standard |
|---|---|
| 2115 | 9:15 p.m. |
| 2116 | 9:16 p.m. |
| 2117 | 9:17 p.m. |
| 2118 | 9:18 p.m. |
| 2119 | 9:19 p.m. |
| 2120 | 9:20 p.m. |
| 2121 | 9:21 p.m. |
| 2122 | 9:22 p.m. |
| 2123 | 9:23 p.m. |
| 2124 | 9:24 p.m. |
| 2125 | 9:25 p.m. |
| 2126 | 9:26 p.m. |
| 2127 | 9:27 p.m. |
| 2128 | 9:28 p.m. |
| 2129 | 9:29 p.m. |
| Military | Standard |
|---|---|
| 2130 | 9:30 p.m. |
| 2131 | 9:31 p.m. |
| 2132 | 9:32 p.m. |
| 2133 | 9:33 p.m. |
| 2134 | 9:34 p.m. |
| 2135 | 9:35 p.m. |
| 2136 | 9:36 p.m. |
| 2137 | 9:37 p.m. |
| 2138 | 9:38 p.m. |
| 2139 | 9:39 p.m. |
| 2140 | 9:40 p.m. |
| 2141 | 9:41 p.m. |
| 2142 | 9:42 p.m. |
| 2143 | 9:43 p.m. |
| 2144 | 9:44 p.m. |
| Military | Standard |
|---|---|
| 2145 | 9:45 p.m. |
| 2146 | 9:46 p.m. |
| 2147 | 9:47 p.m. |
| 2148 | 9:48 p.m. |
| 2149 | 9:49 p.m. |
| 2150 | 9:50 p.m. |
| 2151 | 9:51 p.m. |
| 2152 | 9:52 p.m. |
| 2153 | 9:53 p.m. |
| 2154 | 9:54 p.m. |
| 2155 | 9:55 p.m. |
| 2156 | 9:56 p.m. |
| 2157 | 9:57 p.m. |
| 2158 | 9:58 p.m. |
| 2159 | 9:59 p.m. |
2100 local time in Zulu (UTC)
From the FAA's table: add the hours shown to standard time, one hour less in daylight time.
| 2100 in this zone | Standard time | Daylight time |
|---|---|---|
| Eastern | 0200Z next day | 0100Z next day |
| Central | 0300Z next day | 0200Z next day |
| Mountain | 0400Z next day | 0300Z next day |
| Pacific | 0500Z next day | 0400Z next day |
| Alaska | 0600Z next day | 0500Z next day |
| Hawaii | 0700Z next day | 0600Z next day |
How 2100 is written and said
AR 25-50, para. 1-26: "Military time will be expressed in a group of four digits, from 0001 to 2400, based on the 24–hour clock system. The first two digits represent the hour after midnight and the last two digits represent the minutes." So 2100 is hour 21, minute 00: 9:00 p.m.
Said aloud it is "twenty-one hundred". On paper the same paragraph says "The word "hours" will not be used in conjunction with military time," and that military time is used for memorandums while civilian time is used in letters.
Every hour in military time
0000 12:00 AM0100 1:00 AM0200 2:00 AM0300 3:00 AM0400 4:00 AM0500 5:00 AM0600 6:00 AM0700 7:00 AM0800 8:00 AM0900 9:00 AM1000 10:00 AM1100 11:00 AM1200 12:00 PM1300 1:00 PM1400 2:00 PM1500 3:00 PM1600 4:00 PM1700 5:00 PM1800 6:00 PM1900 7:00 PM2000 8:00 PM2100 9:00 PM2200 10:00 PM2300 11:00 PM2400 12:00 AM
For any other time, in either direction, use the military time converter.