How is World Sleep Day calculated?

This event is observed on the Friday before the spring equinox each year.

When is World Sleep Day 2135?

Name: World Sleep Day
Start: 2135-03-18
End: 2135-03-18
Location: Worldwide

World Sleep Day promotes healthy sleep and awareness of sleep-related health issues.

Download an iCalendar file for World Sleep Day and add it to your calendar app.

When is World Sleep Day 2135?: World Sleep Day 2135 is on Friday, 18 March 2135.
What day of the week is World Sleep Day 2135?: It falls on Friday.
How is World Sleep Day calculated?: This event is observed on the Friday before the spring equinox each year.