The Orders of magnitude (time) reference article from the English Wikipedia on 24-Jul-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Orders of magnitude (time)

Orders of magnitude
Length - Mass - Time - Area - Volume - Power - Temperature - Numbers - Data - U.S. money
Related articles
SI base units - SI derived units - SI prefixes

Orders of magnitude (time)

Powers of 103 seconds	equal to...	common units	orders of magnitude
10-24 s	1 yoctosecond	--	1 ys, 10 ys, 100 ys
10-21 s	1 zeptosecond	--	1 zs, 10 zs, 100 zs
10-18 s	1 attosecond	--	1 as, 10 as, 100 as
10-15 s	1 femtosecond	--	1 fs, 10 fs, 100 fs
10-12 s	1 picosecond	--	1 ps, 10 ps, 100 ps
10-9 s	1 nanosecond	--	1 ns, 10 ns, 100 ns
10-6 s	1 microsecond	--	1 µs, 10 µs, 100 µs
10-3 s	1 millisecond	--	1 ms, 10 ms, 100 ms
1 s	1 second	minute = 60 s	1 s, 10 s, 100 s
103seconds (1000 seconds)	1 kilosecond (16.7 minutes)	hour = 3600 s day = 86 400 s	103 s , 104 s , 105 s
106 seconds (1 million seconds)	1 megasecond (11.6 days)	month = 2.6 x 106 s year ~= π x 107 s	106 s , 107 s , 108 s
109 seconds (1000 million seconds)	1 gigasecond (32 years)	century ~= π x 109 s	109 s , 1010 s , 1011 s
1012 seconds	1 terasecond (32 000 years)	--	1012 s , 1013 s , 1014 s
1015 seconds	1 petasecond (32 million years)	--	1015 s , 1016 s , 1017 s
1018 seconds	1 exasecond (32 billion years)	--	1018 s , 1019 s and more

The pages linked in the right-hand column contain lists of times that are of the same order of magnitude (power of ten). Rows in the table represent increasing powers of a thousand (3 orders of magnitude)

Note: Planck time, the shortest physically meaningful instant of time, is approximately 5.4 x 10^-44 s.

See also

• SI
• SI prefixes
• SI base units
• units
• time
• orders of magnitude
• Logarithmic timeline
• Human's periods

This is the "Orders of magnitude (time)" reference article from the English Wikipedia. All text is available under the terms of the GNU Free Documentation License. See also our Disclaimer.