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The time duration from 1am to 12am (midnight) is exactly 23 hours, which equals 1380 minutes or 82800 seconds.
1am to 12am (midnight) spans 23 hours. This period is during the early morning hours when most people are asleep.
The calculator above automatically sets the times to 1am (01:00) and 12am (00:00), but you can adjust the date or add seconds for more specific calculations.
When the end time is earlier than the start time, the calculator automatically sets the end date to the next day.
