Returns an efficient timestamp in milliseconds elapsed since performance.timeOrigin,
representing the start of the current JavaScript execution context.
Note: Each Web Worker runs in a separate JS context, so timestamps
are not directly comparable between different workers. Use unixTime
for comparable timestamps across different Web Workers.
Returns an efficient timestamp in milliseconds elapsed since performance.timeOrigin, representing the start of the current JavaScript execution context.
Note: Each Web Worker runs in a separate JS context, so timestamps are not directly comparable between different workers. Use unixTime for comparable timestamps across different Web Workers.