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Orders of magnitude (time)

 

Orders of magnitude (time)

10−121 picosecondpsOne trillionth of one second1 ps: mean lifetime of a bottom quark; light travels 0.3 millimeters (mm)
1 ps: typical lifetime of a transition state
4 ps: Time to execute one machine cycle by an IBM silicon-germanium transistor
109 ps: Period of the photon corresponding to the hyperfine transition of the ground state of cesium-133, and one 9,192,631,770th of one second by definition
114.6 ps: Time for the fastest overclocked processor As of 2014 to execute one machine cycle.[9]
10−91 nanosecondnsOne billionth of one second1 ns: Time to execute one machine cycle by a 1 GHz microprocessor
1 ns: Light travels 30 cm (12 in)
10−61 microsecondµsOne millionth of one second1 µs: Time to execute one machine cycle by an Intel 80186 microprocessor
2.2 µs: Lifetime of a muon
4–16 µs: Time to execute one machine cycle by a 1960s minicomputer
10−31 millisecondmsOne thousandth of one second1 ms: time for a neuron in human brain to fire one impulse and return to rest[10]
4–8 ms: typical seek time for a computer hard disk
10−21 centisecondcsOne hundredth of one second1–2 cs (=0.01–0.02 s): Human reflex response to visual stimuli
1.6667 cs period of a frame at a frame rate of 60 Hz.
2 cs: cycle time for European 50 Hz AC electricity
10−11 deciseconddsOne tenth of a second1–4 ds (=0.1–0.4 s): Blink of an eye[1
Multiples                 Unit            Symbol
6×101 seconds   1 minute            m
6×101 minutes   1 hourh (hr)      h
2.4×101 hours    1 day                 d






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