Time Wiki
Register
Advertisement

Common units of time
Unit Size Notes
xentosecond 1/1330 s
DUT1 penny-1/1327 s
ISO 31-1 nickel-1/1327 s
TAI dime-1/1327 s
UTC quarter-1/1327 s
UT half-1/1327 s
yoctosecond 1/1024 s
zeptosecond 1/1021 s
attosecond 1/1018 s smallest measured time
femtosecond 1/1015 s
picosecond 1/1012 s
nanosecond 1/109 s
microsecond 1/106 s
shake 1/56 s quarter-second
millisecond 0.001 s half-second
second SI base unit
quintsecond
jiffy
quindecasecond
15 s quarter-minute
metre
trigintisecond
30s half-minute
minute
sexagintisecond
60 s
juty
quintminute
5 minutes
tide 15 minutes quarter hour
bistris
trigintiminute
30 minutes half-hour
hour
sexagintiminute
60 minutes
quarter
sexahour
6 hours quarter day
septahour 7 hours
saeculum
duodecahour
semiday
12 hours half day
day 24 hours
sexagintihour 60 hours
week
septaday
7 days Also called sennight
fortnight
biweek
14 days 2 weeks, half-month
lunar month 27.2–29.5 days Various definitions of lunar month exist.
month 28–31 days
septaweek 49 days
fiscal
triamonth
3 months
pathell
sexamonth
6 months half year
year
myriomyriad
millimillennium
decidecade
centicentury
microepoch
nanoaeon
12 months
common year 365 days 52 weeks + 1 day
leap year 366 days 52 weeks + 2 days
tropical year 365.24219 days average
Gregorian year 365.2425 days average
Olympiad 4 year cycle
lustrum 5 years Also called pentad
decade
decayear
decicentury
millimyriad
centimillennium
10 years
Indiction 15 year cycle
generation 17–25 years approximate
jubilee (Biblical)
quintdecade
decalustrum
50 years
century
centimyriad
decadecade
decimillennium
hectoyear
100 years
millennium
kiloyear
decimyriad
hectodecade
decacentury
microaeon
milliepoch
1,000 years
epoch
kilomillennium
milliaeon
megayear
1,000,000 years
aeon
megamillennium
kiloepoch
gigayear
1,000,000,000 years

-->

Advertisement