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Time Chart

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

µs, µsec, usec

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

103s
(1000 seconds)

1 kilosecond
(16.7 minutes)

hour = 3600 s
day = 86 400 s = 86.4 ks

week = 604.8 ks

103 s, 104 s, 105 s

106 s
(1 million seconds)

1 megasecond
(11.6 days)

month = 2.6 x 106 s
year = 31.6 Ms ~= π x 107 s

106 s, 107 s, 108 s

109 s
(1000 million seconds)

1 gigasecond
(32 years)

century = 3.16 Gs ~= π x 109 s
millennium = 31.6 Gs ~= π x 1010 s

109 s, 1010 s, 1011 s

1012 s

1 terasecond
(32 000 years)

---

1012 s, 1013 s, 1014 s

1015 s

1 petasecond
(32 million years)

--

1015 s, 1016 s, 1017 s

1018 s

1 exasecond
(32 billion years)

--

1018 s, 1019 s and more

 

 

 

 

 

 

 

 

 

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