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The time duration from 5am to 5pm is exactly 12 hours, which equals 720 minutes or 43200 seconds.
5am to 5pm spans 12 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 5pm (17:00), but you can adjust the date or add seconds for more specific calculations.