22 units · base unit s · T

Time converter

Convert seconds, minutes, hours, days, years and sub-nanosecond units.

From Kilosecond (ks) Millisecond (ms) Microsecond (µs) Nanosecond (ns) Picosecond (ps) Femtosecond (fs) Attosecond (as) Second (s) Minute (min) Hour (h) Day (d) Week (wk) Fortnight (fn) Month (average) (mo) Year (Gregorian) (yr) Decade (dec) Century (c) Millennium (ka) Shake (shake) Year (Julian) (a) Year (tropical) (a (trop)) Planck time (tₚ)

To Kilosecond (ks) Millisecond (ms) Microsecond (µs) Nanosecond (ns) Picosecond (ps) Femtosecond (fs) Attosecond (as) Second (s) Minute (min) Hour (h) Day (d) Week (wk) Fortnight (fn) Month (average) (mo) Year (Gregorian) (yr) Decade (dec) Century (c) Millennium (ka) Shake (shake) Year (Julian) (a) Year (tropical) (a (trop)) Planck time (tₚ)

1000ms

✓ Exact 1 s = 1000 ms Copy

Significant digits

12

Notation Automatic Plain decimal Scientific Engineering 1 s = 1000 ms

Common time conversions

• s → ms
• s → µs
• s → ns
• s → min
• s → h
• s → d
• s → wk
• s → mo
• s → yr
• ms → s
• ms → µs
• ms → ns
• ms → min
• ms → h
• ms → d
• ms → wk
• ms → mo
• ms → yr
• µs → s
• µs → ms
• µs → ns
• µs → min
• µs → h
• µs → d
• µs → wk
• µs → mo
• µs → yr
• ns → s
• ns → ms
• ns → µs
• ns → min
• ns → h
• ns → d
• ns → wk
• ns → mo
• ns → yr
• min → s
• min → ms
• min → µs
• min → ns
• min → h
• min → d
• min → wk
• min → mo
• min → yr
• h → s
• h → ms
• h → µs
• h → ns
• h → min
• h → d
• h → wk
• h → mo
• h → yr
• d → s
• d → ms
• d → µs
• d → ns
• d → min
• d → h

All time units

Each unit expressed in seconds (s), the unit everything in this category converts through.

Unit	Symbol	System	Value in s
Kilosecond	ks	metric	1000
Second	s	SI	1
Millisecond	ms	metric	0.001
Microsecond	µs	metric	0.000001
Nanosecond	ns	metric	0.000000001
Picosecond	ps	metric	0.000000000001
Femtosecond	fs	metric	0.000000000000001
Attosecond	as	metric	0.000000000000000001
Minute	min	other	60
Hour	h	other	3600
Day	d	other	86400
Week	wk	other	604800
Fortnight	fn	other	1209600
Month (average)	mo	other	2629746
Year (Gregorian)	yr	other	31556952
Year (Julian)	a	astronomical	31557600
Year (tropical)	a (trop)	astronomical	31556925.216
Decade	dec	other	315569520
Century	c	other	3155695200
Millennium	ka	other	31556952000
Shake	shake	other	0.00000001
Planck time	tₚ	atomic	0.00000000000000000000000000000000000000000005391247

About time units

Convert seconds, minutes, hours, days, years and sub-nanosecond units.

Dimensional formula: T. Every conversion on this page goes through the second, using exact fractions rather than decimal approximations. Read how that works →