UTC date
2026-04-12
🚀 Holiday countdown
An April 12 UTC countdown for human spaceflight, science education, aerospace, and museum calendars.
Countdown
Time reached.
Local target
Apr 12, 2026, 00:00:00
UTC target
12/04/2026 00:00:00 UTC
Unix seconds
1775952000
Unix milliseconds
1775952000000
International Day of Human Space Flight 2026 is counted down to Sunday, April 12, 2026 at 12:00 AM UTC. The canonical URL keeps the year in the path, so International Day of Human Space Flight 2026 and International Day of Human Space Flight 2027 are separate target-date pages.
2026-04-12
Fixed calendar date: April 12.
Share this fixed holiday page when the date is public; use the custom countdown for private launches and deadlines.