UTC date
2029-12-21
❄️ Holiday countdown
A conventional December 21 UTC countdown for winter solstice planning, seasonal content, and public calendars.
Countdown
Target: Dec 21, 2029, 00:00:00
Local target
Dec 21, 2029, 00:00:00
UTC target
21/12/2029 00:00:00 UTC
Unix seconds
1892505600
Unix milliseconds
1892505600000
Winter Solstice 2029 is counted down to Friday, December 21, 2029 at 12:00 AM UTC. The canonical URL keeps the year in the path, so Winter Solstice 2029 and Winter Solstice 2030 are separate target-date pages.
2029-12-21
Conventional fixed public-calendar date: December 21.
Share this fixed holiday page when the date is public; use the custom countdown for private launches and deadlines.