Hours ago

Subtract whole hours from the current instant and read the local date-time.

How it works

Direction is negative. Crossing midnight is automatic because the math is on timestamps, not clock digits.

Questions

Does this use UTC?

The subtraction is in milliseconds from Date.now(); the printed time is your locale and time zone.

Related tools

Online Timer

Set hours, minutes, and seconds. The remaining time is tracked from timestamps.
Stopwatch

Start, pause, and record laps with millisecond display.
Time Calculator

Add or subtract hours, minutes, and seconds across multiple durations.
Hours From Now

Find the exact local date and time a number of hours from now.