Military Time Chart: 12-Hour to 24-Hour Conversion Table

This is the complete conversion table behind the military time converter, in 30-minute steps from 0000 (midnight) to 2330 (11:30 PM). Unlike most charts, it includes the spoken form of every entry, because saying “fifteen hundred” correctly matters as much as writing 1500. Print it: the page strips its navigation automatically and the two half-day tables fit a single sheet in most browsers.

* 2400 is not a 49th time of day — it is the end-of-day label for the same instant that 0000 gives the following day. Use 0000 for times, 2400 only to close a range (“liberty expires 2400”). 2401 does not exist; the minute after 2359 is 0000.

How to read the chart

Find the military time in the left column of either table and read across. The two halves split exactly at noon, which is also where the mental arithmetic changes: every row in the left table keeps its hour number as an AM time, while in the right table the 12xx rows are the noon hour itself and every row from 1300 onward needs 12 subtracted from the hour. That is why 1130 is 11:30 AM but 2330 — twelve hours later — is 11:30 PM, written with digits that look nothing alike.

The spoken column follows the widely taught convention: “hundred” on the exact hour (“eighteen hundred”), plain minutes otherwise (“eighteen thirty”), and voiced leading zeros in the morning (“zero four thirty”). Radio procedures differ by service and country — civilian aviation reads each digit separately (“one eight zero zero”) — so treat the column as the common conversational form, not a regulation.

Two conversions worked from the chart

A nurse charts a dose at 2130

Locate 2130 in the right-hand table: 9:30 PM. The reverse check is the subtract-12 rule: 21 − 12 = 9, minutes stay 30. Charting in 24-hour time is exactly what prevents a “9:30” scribble from being misread as morning — see the dedicated 2130 military time page for the full walkthrough.

A recruit reads “PT at 0430”

0430 sits in the left-hand table between 0400 and 0500: 4:30 AM, spoken “zero four thirty”. The leading zero is kept in writing and in speech — dropping it (“430”) is how a 4:30 formation gets confused with an afternoon 1630 one.

Patterns the full table makes obvious

• The +12 mirror: each PM row is its AM twin plus 1200 — 0600/1800, 0930/2130, 1130/2330. Once you see the pairing, you can reconstruct the whole chart from the AM half.
• The 12s never behave: 1200 is 12:00 PM but 0000 — not 1200 — is 12:00 AM. The digits 12 appear in both halves of the civilian clock while military time uses 00 and 12 exactly once each.
• Minutes are untouched: only hours are ever converted. The :30 in 1430 and in 2:30 PM are the same 30 minutes, which is why this chart only needs hour-level rules.

For any time not on the 30-minute grid, the converter handles arbitrary minutes, and the popular single-time pages — 1500, 1700, 2000 — cover the lookups people actually search for.