What is 1331 in Military Time?
1331 military time equals
1:31 PM
How to Convert 1331
1331 falls after noon on the 24-hour clock, so the rule is: subtract 12 from the hour and add PM.
13 − 12 = 1 → 1:31 PM (the minutes, 31, stay exactly the same).
Going the other way: 1:31 PM + 12 = 1331. Or skip the math — type 1331 into the military time converter and convert any time instantly on the home page.
Times Around 1331
See the whole day on one page: Military Time Chart or view the full 24-hour chart.
All Times From 1300 to 1359
Every minute of this hour has its own quick answer page:
- 1300 1:00 PM
- 1301 1:01 PM
- 1302 1:02 PM
- 1303 1:03 PM
- 1304 1:04 PM
- 1305 1:05 PM
- 1306 1:06 PM
- 1307 1:07 PM
- 1308 1:08 PM
- 1309 1:09 PM
- 1310 1:10 PM
- 1311 1:11 PM
- 1312 1:12 PM
- 1313 1:13 PM
- 1314 1:14 PM
- 1315 1:15 PM
- 1316 1:16 PM
- 1317 1:17 PM
- 1318 1:18 PM
- 1319 1:19 PM
- 1320 1:20 PM
- 1321 1:21 PM
- 1322 1:22 PM
- 1323 1:23 PM
- 1324 1:24 PM
- 1325 1:25 PM
- 1326 1:26 PM
- 1327 1:27 PM
- 1328 1:28 PM
- 1329 1:29 PM
- 1330 1:30 PM
- 1331 1:31 PM
- 1332 1:32 PM
- 1333 1:33 PM
- 1334 1:34 PM
- 1335 1:35 PM
- 1336 1:36 PM
- 1337 1:37 PM
- 1338 1:38 PM
- 1339 1:39 PM
- 1340 1:40 PM
- 1341 1:41 PM
- 1342 1:42 PM
- 1343 1:43 PM
- 1344 1:44 PM
- 1345 1:45 PM
- 1346 1:46 PM
- 1347 1:47 PM
- 1348 1:48 PM
- 1349 1:49 PM
- 1350 1:50 PM
- 1351 1:51 PM
- 1352 1:52 PM
- 1353 1:53 PM
- 1354 1:54 PM
- 1355 1:55 PM
- 1356 1:56 PM
- 1357 1:57 PM
- 1358 1:58 PM
- 1359 1:59 PM
When You'll See 1331
The afternoon. Hospital evening shifts are often posted as 1430–2230 or 1500–2300; 1331 (1:31 PM) shows up on shift boards, after-school activity timetables, and afternoon flight departures.
To say it out loud, read the two pairs: "thirteen thirty-one." In formal military usage you may also hear "thirteen hundred thirty-one hours."
Frequently Asked Questions
Is 1331 AM or PM?
PM. Any military time from 1300 to 2359 is afternoon or evening. 1331 = 1:31 PM.
How do you say 1331 in military time?
"Thirteen thirty-one." Whole hours get the "hundred" treatment (1300 is "thirteen hundred"), but with minutes you read the two pairs.
What is 1:31 PM in military time?
1331. Add 12 to any PM hour: 1 + 12 = 13, so 1:31 PM becomes 1331.
Is 1331 the same as 13:31?
Yes — same time, two writing styles. Schedules in military format drop the colon (1331); European-style 24-hour clocks keep it (13:31). Both mean 1:31 PM.