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lines changed Original file line number Diff line number Diff line change @@ -400,11 +400,22 @@ export const crossPlatformPerformance: CrossPlatformPerformance = (() => {
400400 return getGlobalObject < Window > ( ) . performance || performanceFallback ;
401401} ) ( ) ;
402402
403+ let FIRST_CLOCK_READ : number | undefined ;
404+
405+ /**
406+ * This returns a timestamp of the first time we look at the clock
407+ */
408+ function getFirstClockRead ( ) : number {
409+ if ( ! FIRST_CLOCK_READ ) {
410+ FIRST_CLOCK_READ = crossPlatformPerformance . timeOrigin ;
411+ }
412+ return FIRST_CLOCK_READ ;
413+ }
403414/**
404415 * Returns a timestamp in seconds with milliseconds precision since the UNIX epoch calculated with the monotonic clock.
405416 */
406417export function timestampWithMs ( ) : number {
407- return ( crossPlatformPerformance . timeOrigin + crossPlatformPerformance . now ( ) ) / 1000 ;
418+ return ( getFirstClockRead ( ) + crossPlatformPerformance . now ( ) ) / 1000 ;
408419}
409420
410421// https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string
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