AppendixReferencesCheatcodes ReferenceExternalunixTimeVersion: v. 1On this pageunixTimeSignature function unixTime() external returns (uint milliseconds); Description Returns the time since unix epoch in milliseconds. Examples uint start = vm.unixTime();vm.sleep(10_000); // Halts execution for 10 secondsuint end = vm.unixTime();assertEq(end - start, 10_000);