1*10-12 second
Yes, a pico second is a thousandth of a nano second.
1/1,000,000,000,000 of a second = 1 pico-second however 1/1,000,000,000,000,000,000,000,000 of a second = 1 yacto-second
1 pico second = 1 trillionth of a second (ten to the -12)
1,000,000,000,000
0.72ns
A pico moment would be an extremely brief period of time, a tiny fraction of a second.
Millisecond.
A picosecond would be one trillionth of a second. Pico is commonly used in units of measurement for electricity, for example a picofarad is one trillionth of a farad.
1012
A nano second. It is 1000 times larger than a picosecond
nano = 10-9 pico = 10-12 nano / pico = 10-9 / 10-12 = 103 or 1000. The prefixes mean the same thing (the same numerical multiplier), whether they are used with seconds, meters, Farad, or whatever.
The prefix pico - whether used with seconds or with other measurements - means 10-12, in other words, a factor of 1 / 1,000,000,000,000.