# Century, Time

Century is one hundred consecutive years. Centuries are numbered ordinally in English and many other languages.

According to the Gregorian calendar, the 1st century AD/CE started on January 1, 1 and ended on December 31, 100. The 2nd century started at year 101, the 3rd at 201, etc. The n-th century started/will start on the year (100×n)-99 and ends in 100×n . A century will only include one year, the centennial year, that starts with the century's number (e.g. 1900 is the final year in the 19th century).

List of all Century to other time units individual converters.
Convert  Century

### Metric, SI

Yoctosecond ys 3153600000×1024
Zeptosecond zs 3153600000×1021
Attosecond as 3153600000×1018
Femtosecond fs 3153600000×1015
Picosecond ps 3153600000×1012
Nanosecond ns 3153600000×109
Microsecond µs 3153600000×106
Millisecond ms 3153600000×103
Centisecond cs 3153600000×102
Decisecond ds 3153600000×101
Second s 3153600000
Decasecond das 315360000
Hectosecond hs 31536000
Kilosecond ks 3153600
Megasecond Ms 3153.6
Gigasecond Gs 3.1536
Terasecond Ts 0.0032
Petasecond Ps 3.1536×10-6
Exasecond Es 3.1536×10-9
Zettasecond Zs 3.1536×10-12
Yottasecond Ys 3.1536×10-15

### Common units

Minute min 52560000
Hour h 876000
Day d 36500
Week 5214.2857
Fortnight 2607.1429
Month 1200
Year y 100
Decade 10

### Sidereal time

Sidereal second 3162234290.9975
Sidereal minute 52703904.8403
Sidereal hour 878398.414
Sidereal day 36599.9339
Sidereal month 1335.9364
Sidereal year 99.9298

### Other

Shake 3153600000×108
Tropical month 1335.9402
Synodic month 1236.006
Leap year 99.7268
Julian year 99.9316
Tropical year 99.9337
Septennial 14.2857
Octennial 12.5
Novennial 11.1111
Quindecennial 6.6667

### Result formatting:

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