Time Converter

Unit converter

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Time Converter

Convert between 19 time units instantly. Select your units from the Builder tab or type a conversion like "100 cm to inches" in the AI input. Every conversion shows the full step-by-step calculation.

This converter covers all standard time units including metric and imperial systems. Use the reference table below to see how each unit relates to the base unit (second).

Complete list of Seconds Time conversions

Seconds to Century Seconds to Days Seconds to Decade Seconds to Fortnight Seconds to Hours Seconds to Leap Year Seconds to Microseconds Seconds to Milliseconds Seconds to Minutes Seconds to Months Seconds to Nanoseconds Seconds to Planck Time Seconds to Quarter Seconds to Shake Seconds to Sidereal Day Seconds to Sidereal Year Seconds to Weeks Seconds to Years

Time units reference

Unit	Symbol	second
Century	cent	3155695200
Day	day	86400
Decade	dec	315569520
Fortnight	fn	1209600
Hour	hr	3600
Leap Year	leap yr	31622400
Microsecond	μs	1 × 10⁻⁶
Millisecond	ms	0.001
Minute	min	60
Month	mo	2629746
Nanosecond	ns	1 × 10⁻⁹
Planck Time	tₚ	5.391 × 10⁻⁴⁴
Quarter	qtr	7889238
Second	s	1
Shake	shake	1 × 10⁻⁸
Sidereal Day	sid day	86164.1
Sidereal Year	sid yr	3.156 × 10⁷
Week	wk	604800
Year	yr	31556952

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