What is 0139 in Military Time?
0139 military time equals
1:39 AM
How to Convert 0139
0139 falls in the morning half of the 24-hour clock, so the rule is: the hour matches standard time — just add AM.
1 = 1 → 1:39 AM — morning hours match directly (the minutes, 39, stay exactly the same).
Going the other way: 1:39 AM = 0139 — drop the AM and pad single-digit hours with a leading zero. Or skip the math — type 0139 into the military time converter and convert any time instantly on the home page.
Times Around 0139
See the whole day on one page: Military Time Chart or view the full 24-hour chart.
All Times From 0100 to 0159
Every minute of this hour has its own quick answer page:
- 0100 1:00 AM
- 0101 1:01 AM
- 0102 1:02 AM
- 0103 1:03 AM
- 0104 1:04 AM
- 0105 1:05 AM
- 0106 1:06 AM
- 0107 1:07 AM
- 0108 1:08 AM
- 0109 1:09 AM
- 0110 1:10 AM
- 0111 1:11 AM
- 0112 1:12 AM
- 0113 1:13 AM
- 0114 1:14 AM
- 0115 1:15 AM
- 0116 1:16 AM
- 0117 1:17 AM
- 0118 1:18 AM
- 0119 1:19 AM
- 0120 1:20 AM
- 0121 1:21 AM
- 0122 1:22 AM
- 0123 1:23 AM
- 0124 1:24 AM
- 0125 1:25 AM
- 0126 1:26 AM
- 0127 1:27 AM
- 0128 1:28 AM
- 0129 1:29 AM
- 0130 1:30 AM
- 0131 1:31 AM
- 0132 1:32 AM
- 0133 1:33 AM
- 0134 1:34 AM
- 0135 1:35 AM
- 0136 1:36 AM
- 0137 1:37 AM
- 0138 1:38 AM
- 0139 1:39 AM
- 0140 1:40 AM
- 0141 1:41 AM
- 0142 1:42 AM
- 0143 1:43 AM
- 0144 1:44 AM
- 0145 1:45 AM
- 0146 1:46 AM
- 0147 1:47 AM
- 0148 1:48 AM
- 0149 1:49 AM
- 0150 1:50 AM
- 0151 1:51 AM
- 0152 1:52 AM
- 0153 1:53 AM
- 0154 1:54 AM
- 0155 1:55 AM
- 0156 1:56 AM
- 0157 1:57 AM
- 0158 1:58 AM
- 0159 1:59 AM
When You'll See 0139
The small hours. Overnight crews — hospital night nurses, dispatchers, bakers starting early — see 0139 (1:39 AM) on their logs and handoff notes. Flights departing around 0139 are the first red-eyes of the morning.
To say it out loud, read the two pairs: "zero one thirty-nine." In formal military usage you may also hear "zero one hundred thirty-nine hours."
Frequently Asked Questions
Is 0139 AM or PM?
AM. Any military time from 0000 to 1159 is before noon. 0139 = 1:39 AM.
How do you say 0139 in military time?
"Zero one thirty-nine." Whole hours get the "hundred" treatment (0100 is "zero one hundred"), but with minutes you read the two pairs.
What is 1:39 AM in military time?
0139. Morning hours match directly: drop the AM and pad to four digits.
Is 0139 the same as 1:39?
Yes — same time, two writing styles. Schedules in military format drop the colon (0139); European-style 24-hour clocks keep it (1:39). Both mean 1:39 AM.