Basic recipes

Start here when you need a single lifecycle or a display-only timer.

Core only

• Wall clock: use timer.now and format the Date in your app.
• Stopwatch: use elapsedMilliseconds for active elapsed time.
• Absolute countdown: derive remaining time from expiresAt - timer.now.
• Manual controls: wire start, pause, resume, reset, restart, and cancel.

Core + duration

• Pausable countdown: use elapsedMilliseconds and durationParts() for display math.
• OTP resend cooldown: enable a resend button after a 15 second local cooldown.