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The time duration from 5am to 12am (midnight) is exactly 19 hours, which equals 1140 minutes or 68400 seconds.
5am to 12am (midnight) spans 19 hours. This period is during the early morning hours when many people are beginning to wake up or start their day.
The calculator above automatically sets the times to 5am (05:00) 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.