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The time duration from 4am to 3am is exactly 23 hours, which equals 1380 minutes or 82800 seconds.
4am to 3am spans 23 hours. This period is during the early morning hours when most people are asleep.
The calculator above automatically sets the times to 4am (04:00) and 3am (03:00), 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.
