Countdown tools · Moments to celebrate
Birthday Countdown
A little anticipation for their big day.
Something to look forward to.
Set up your countdown to begin.
Days in the ticking display are 24-hour periods.
Links include the displayed setup, names and dates. Edits need a new link. Calendar files contain 30-minute markers, not automatic reminders.
How to use the birthday countdown
Enter a name, birthday month and day, and the time zone where the birthday is celebrated. No birth year is needed. The countdown finds the next birthday and keeps a celebration message visible for the whole local birthday date.
For February 29, choose February 28, March 1, or only actual leap days. These are personal celebration choices, not legal age rules. The target is midnight, or the first valid local minute if a clock change skips midnight. A completely skipped local date is passed over. The link follows the next birthday rather than staying fixed to one year.
What happens when the birthday arrives?
The display says the birthday is today and stays at zero until that local date ends. It then finds the next occurrence. A shared link contains the name, month, day and time zone, so use a nickname if that is all you want to share.
How does this countdown keep time?
It uses TimeCubby's server-time synchronization and advances locally between checks. The synchronization status tells you when NTP is unavailable or the connection is stale. Time-zone conversion uses your browser's time-zone rules; keep the browser updated. A one-time event link preserves its exact instant. Holiday, recurring and New Year setups calculate their next dates from the rules you chose.
Will I receive a reminder?
No email or push reminder is sent. An optional sound can play when a visible, open page crosses a target. It cannot be relied on when the browser is closed, the device sleeps or sound is blocked. Calendar export creates 30-minute markers; review their duration and reminder settings in your calendar. Recurring exports contain only the previewed dates.