🔍 /

24-Hour to 12-Hour Time Converter

Instantly convert 24-hour (military) time to 12-hour AM/PM format. Features a smart bidirectional parser, visual analog clock, and reference charts.

User Rating 0.0 ★★★★★
Total Usage 0 times
Category Time
12:00 PM
00:00 12:00 23:59
ISO 8601
Is this tool helpful?

Your feedback helps us improve.

★ ★ ★ ★ ★

About

This tool eliminates the confusion between the 24-hour time system (often called Military Time in the US) and the 12-hour AM/PM system. While the 24-hour clock is the international standard (ISO 8601) used in aviation, medicine, and computing to avoid ambiguity, the 12-hour format remains dominant in everyday life in North America and parts of the UK.

The primary risk in manual conversion is the Midnight/Noon Phase. For example, 12:00 AM is the start of the day (00:00), while 12:00 PM is noon (12:00). This tool uses strict modulo arithmetic to handle these edge cases, ensuring precision for scheduling, logs, or timestamping.

time converter military time 24 hour clock am pm calculator time format

Formulas

The conversion logic relies on Modular Arithmetic to cycle the hours. The minutes m remain constant between formats.

{
h12 = h24 mod 12if h24 = 0 → 12Suffix = AM if h24 < 12Suffix = PM if h24 ≥ 12

Where h24 is the hour in 24-hour format and h12 is the hour in 12-hour format.

Reference Data

24-Hour (Military)12-Hour (AM/PM)Day Period
00:0012:00 AMMidnight (Start of Day)
01:001:00 AMLate Night
02:002:00 AMLate Night
03:003:00 AMEarly Morning
04:004:00 AMEarly Morning
05:005:00 AMEarly Morning
06:006:00 AMMorning
07:007:00 AMMorning
08:008:00 AMMorning
09:009:00 AMMorning
10:0010:00 AMMorning
11:0011:00 AMMorning
12:0012:00 PMNoon (Midday)
13:001:00 PMAfternoon
14:002:00 PMAfternoon
15:003:00 PMAfternoon
16:004:00 PMAfternoon
17:005:00 PMLate Afternoon
18:006:00 PMEvening
19:007:00 PMEvening
20:008:00 PMEvening
21:009:00 PMNight
22:0010:00 PMNight
23:0011:00 PMNight

Frequently Asked Questions

Midnight is 12:00 AM. In the 24-hour system, it is 00:00 (the start of a new day). Noon is 12:00 PM (12:00 in 24-hour).
Military and emergency services often omit the colon for brevity and data transmission clarity. "1430" is read as "fourteen-thirty" and equals 2:30 PM.
0001 is one minute past midnight, or 12:01 AM.
Yes, seconds are supported conceptually, but this tool focuses on Hour/Minute conversion as seconds remain identical in both systems.