the globe. as of May 2010, the smallest time interval uncertainty in direct measurements is on the order of 12 attoseconds (1.2 × 10^-17 seconds), about 3.7 × 10²⁶ Planck times. The time measured was the delay caused by out-of-sync electron waves' interference patterns.

Units

The second (s) is the SI base unit. A minute

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