How Long Until 1:00 AM?
Live countdown to 1:00 AM — Monday, October 26, 2026. The timer below updates every second.
Counting down to 1:00 AM
--Days
--Hours
--Minutes
--Seconds
How to Calculate the Time Until 1:00 AM
To manually calculate how long until 1:00 AM, subtract the current time from 1:00 AM. If 1:00 AM has already passed today, the countdown targets 1:00 AM tomorrow.
For example, if it's currently 10:30 AM and you want to know how long until 1:00 AM:
Time remaining = 1:00 AM − Current Time
The countdown above handles this automatically — including the day-rollover logic when the target time has passed for today. You can also use our Time Duration Calculator for precise duration between any two times.
Time Equivalents
1:00 AM is the same as 01:00 in 24-hour (military) time. That's 1.0 hours into the day, or 60 minutes past midnight.