How to Convert Between Time Units
Converting between time units is a fundamental skill used in programming, physics, project management, and everyday life. All time conversions use fixed ratios: 60 seconds per minute, 60 minutes per hour, 24 hours per day, and 7 days per week. Multiplying and dividing by these ratios converts any duration into any other unit.
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Formula
Time Converter
Convert any duration between seconds, minutes, hours, days, and weeks.
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Worked Example
Given:
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FAQs
How many seconds are in a day?
There are 86,400 seconds in a day: 60 seconds × 60 minutes × 24 hours = 86,400. This number is important in computing, astronomy, and physics calculations.
How many seconds are in a year?
A regular year has approximately 31,536,000 seconds (365 × 86,400). A leap year has 31,622,400 seconds. A common approximation used in science is π × 10⁷ ≈ 31,415,926 seconds.
Does this account for daylight saving time?
No — this converter uses standard fixed ratios. Daylight saving time (DST) creates days with 23 or 25 hours twice per year. For precise wall-clock time calculations spanning DST transitions, a calendar-aware date library should be used.