Previous Page...   Printer Version Science Constants - Planck Time lP/c = (ħG/c5)1/2 Symbol: tP Value: 5.3906(40) × 10-44 s Category: - Universal Constants Description:   [ H O M E ] [ S C I E N C E ] [ M A T H S ] [ A S T R O N O M Y ] [ Download ] [ Shop ] [ Contact ] [ About ]