Skip to main content
ConvertUnitOnline

Time Converter

Convert seconds, minutes, hours, days, weeks, and more — instantly.

Free time unit converter. Convert seconds to minutes, hours to days, and more. Month and year variants labeled clearly. Use the express converter for any unit pair, or open a quick conversion below.

Instant Private Free

1 second = 0.0166666667 minutes

Unit
Unit
Format

Popular conversions

Hand-picked pairs with dedicated converter pages — open one to convert instantly.

Second → Minute

Second to Minute

Minute → Second

Minute to Second

Minute → Hour

Minute to Hour

Hour → Minute

Hour to Minute

Hour → Day

Hour to Day

Day → Hour

Day to Hour

Day → Week

Day to Week

Week → Day

Week to Day

Second → Hour

Second to Hour

Hour → Second

Hour to Second

Day → Year

Day to Year

Year → Day

Year to Day

Day → Month (average)

Day to Month (average)

Month (average) → Day

Month (average) to Day

Second → Day

Second to Day

Day → Second

Day to Second

Millisecond → Second

Millisecond to Second

Second → Millisecond

Second to Millisecond

Minute → Day

Minute to Day

Day → Minute

Day to Minute

Hour → Week

Hour to Week

Week → Hour

Week to Hour

Browse all time units

Pick any unit to open a two-way conversion. Month and year variants are labeled clearly (average month, year).

SECOND

1 s = 0.0166666667 min

second (s) → minute (min) minute (min) → second (s)

MILLISECOND

1 ms = 0.001 s

millisecond (ms) → second (s) second (s) → millisecond (ms)

MICROSECOND

1 µs = 0.000001 s

microsecond (µs) → second (s) second (s) → microsecond (µs)

NANOSECOND

1 ns = 1e-9 s

nanosecond (ns) → second (s) second (s) → nanosecond (ns)

PICOSECOND

1 ps = 1e-12 s

picosecond (ps) → second (s) second (s) → picosecond (ps)

FEMTOSECOND

1 fs = 1e-15 s

femtosecond (fs) → second (s) second (s) → femtosecond (fs)

ATTOSECOND

1 as = 1e-18 s

attosecond (as) → second (s) second (s) → attosecond (as)

MINUTE

1 min = 0.0166666667 h

minute (min) → hour (h) hour (h) → minute (min)

HOUR

1 h = 0.0416666667 d

hour (h) → day (d) day (d) → hour (h)

DAY

1 d = 0.1428571429 wk

day (d) → week (wk) week (wk) → day (d)

WEEK

1 wk = 0.2299794661 mo

week (wk) → month (average) (mo) month (average) (mo) → week (wk)

MONTH (AVERAGE)

1 mo = 0.0833333333 a

month (average) (mo) → year (a) year (a) → month (average) (mo)

YEAR

1 a = 31,557,600 s

year (a) → second (s) second (s) → year (a)

YEAR (COMMON, 365 DAYS)

1 a = 31,536,000 s

year (common, 365 days) (a) → second (s) second (s) → year (common, 365 days) (a)

YEAR (LEAP, 366 DAYS)

1 a = 31,622,400 s

year (leap, 366 days) (a) → second (s) second (s) → year (leap, 366 days) (a)

YEAR (TROPICAL)

1 a = 31,556,925.216 s

year (tropical) (a) → second (s) second (s) → year (tropical) (a)

YEAR (SIDEREAL)

1 a = 31,558,149.764928 s

year (sidereal) (a) → second (s) second (s) → year (sidereal) (a)

MONTH (SYNODIC)

1 mo = 2,551,442.976 s

month (synodic) (mo) → second (s) second (s) → month (synodic) (mo)

DAY (SIDEREAL)

1 d* = 86,164.0905 s

day (sidereal) (d*) → second (s) second (s) → day (sidereal) (d*)

HOUR (SIDEREAL)

1 h* = 3,590.1704375 s

hour (sidereal) (h*) → second (s) second (s) → hour (sidereal) (h*)

MINUTE (SIDEREAL)

1 min* = 59.8361739583 s

minute (sidereal) (min*) → second (s) second (s) → minute (sidereal) (min*)

SECOND (SIDEREAL)

1 s* = 0.997269565 s

second (sidereal) (s*) → second (s) second (s) → second (sidereal) (s*)

DECADE

1 dec = 315,576,000 s

decade (dec) → second (s) second (s) → decade (dec)

CENTURY

1 c = 3,155,760,000 s

century (c) → second (s) second (s) → century (c)

MILLENNIUM

1 mil = 31,557,600,000 s

millennium (mil) → second (s) second (s) → millennium (mil)

FORTNIGHT

1 fn = 1,209,600 s

fortnight (fn) → second (s) second (s) → fortnight (fn)

SHAKE

1 shake = 1e-8 s

shake → second (s) second (s) → shake

SEPTENNIAL

1 sept = 220,903,200 s

septennial (sept) → second (s) second (s) → septennial (sept)

OCTENNIAL

1 oct = 252,460,800 s

octennial (oct) → second (s) second (s) → octennial (oct)

NOVENNIAL

1 nov = 284,018,400 s

novennial (nov) → second (s) second (s) → novennial (nov)

QUINDECENNIAL

1 quind = 473,364,000 s

quindecennial (quind) → second (s) second (s) → quindecennial (quind)

QUINQUENNIAL

1 quin = 157,788,000 s

quinquennial (quin) → second (s) second (s) → quinquennial (quin)

PLANCK TIME

1 tP = 5.39e-44 s

planck time (tP) → second (s) second (s) → planck time (tP)