Time Conversion Table
| fractions
of a second |
metric
name |
| 0,000
000 000 000 000 000 000 001 |
yoctosecond
[ ys ] |
| 0,000
000 000 000 000 000 001 |
zeptosecond [ zs ] |
| 0,000
000 000 000 000 001 |
attosecond
[ as ] |
| 0,000
000 000 000 001 |
femtosecond [ fs ] |
| 0,000
000 000 001 [ trillionth ] |
picosecond
[ ps ] |
| 0,000
000 001 [ billionth ] |
nanosecond [ ns ] |
| 0,000
001 [ millionth ] |
microsecond
[ µs
] |
| 0,001
[ thousandth ] |
millisecond [ ms ] |
| 0.01
[ hundredth ] |
centisecond
[ cs ] |
| 1.0 |
second [ s ] |
| seconds
to years |
|
| 60 seconds |
= 1 minute
[ mean solar ] |
| 59.83617 seconds |
= 1 minute [ sidereal
] |
| 60 minutes |
= 1 hour |
| 24 hours |
= 1 day |
| 3,600
seconds |
= 1 hour |
| 86,400 seconds |
= 1 day [ mean solar
] |
| 86,164.09
seconds |
= 1 day
[ sidereal ] |
| 7 days |
= 1 week |
| 168 hours |
= 1 week |
| 14 days |
= 1 fortnight |
| 28, 29,
30 or 31 days |
= 1 month |
| 365 days |
= 1 year |
| 366 days |
= 1 leap
year |
| 12 months |
= 1 year |
| 31,536,000
seconds |
= 1 year
[ calendar ] |
| 31,558,150 seconds |
= 1 year [ sidereal ] |
| 31,556,930
seconds |
= 1 year
[ tropical ] |
| 9,460,550,000,000,000
metres |
= 1 light year |
| 299,792,458
metres per second ( m/s ) |
= speed of light |
| parsec |
= approx. 3.25 light
years |
| year
intervals - anniversaries |
number
of years |
| Biennial |
2 |
| Triennial |
3 |
| Quadrennial |
4 |
| Quinquennial |
5 |
| Hexennial
* |
6 |
| Septennial |
7 |
| Octennial |
8 |
| Novennial |
9 |
| Decennial |
10 |
| Hendecennial
* |
11 |
| Duodecennial |
12 |
| Tredecennial
* |
13 |
| Quindecennial |
15 |
| Sextodecennial
* |
16 |
| Septendecennial |
17 |
| Vigintennial
* |
20 |
| Trigentennial
* |
30 |
| Quadragennial |
40 |
| Quinquagenary |
50 |
| Sexagennial
* |
60 |
| Septuagennial
* |
70 |
| Septuagesiquintennial
* |
75 |
| Octogintennial
* |
80 |
| Nonagintennial
* |
90 |
| Centennial |
100 |
| Quasquicentennial |
125 |
| Sesquicentennial |
150 |
| Terquasquicentennial
or Septaquintaquinquecentennial * |
175 |
| Bicentennial |
200 |
| Quasquibicentennial
* |
225 |
| Semiquincentennial
* |
250 |
| Tercentennial |
300 |
| Semiseptcentennial
* |
350 |
| Quatercentenary |
400 |
| Quincentennial |
500 |
| Sexcentennial
* |
600 |
| Septcentennial
* |
700 |
| Octocentennial |
800 |
| Millenial |
1,000 |
| Quindecimillenial |
15,000 |
| Note:-
Interval names marked with a * do not appear in major dictionaries
but follow a logical linguistic progression. |
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