When you choose an order of magnitude you must also choose it’s inverse.
For example if you choose femtoseconds (fs) it’s inverse is petaseconds (Ps):
t = 1 second
T^1 = 1015 fs
T^2 = (1 × 1015) / (1 / 1015) = 1030 fs²
A = 1 × 1015 = 1015 femtoseconds (fs)
B = 1 / 1015 = 10−15 petaseconds (Ps)
Orders of magnitude (time):
Plank time: 10−44 tP
Yoctosecond: 10−24 ys
Zeptosecond: 10−21 zs
Attosecond: 10−18 as
Femtosecond: 10−15 fs
Picosecond: 10−12 ps
Nanosecond: 10−9 ns
Microsecond: 10−6 µs
Millisecond: 10−3 ms
Centisecond: 10−2 cs
Decisecond: 10−1 ds
Second: 1 s
Decasecond: 101 das
Hectosecond: 102 hs
Kilosecond: 103 ks
Megasecond: 106 Ms
Gigasecond: 109 Gs
Terasecond: 1012 Ts
Petasecond: 1015 Ps
Exasecond: 1018 Es
Zettasecond: 1021 Zs
Yottasecond: 1024 Ys
