Moon Guide for May
Discover the phases of the Moon in May 2025, including a close approach with Mars and the Micro Flower Moon.
Elsewhere on timeanddate.com
In 1875, 17 Countries Signed the Metre Convention
A quick guide to the meter—the standard unit of length—with 4 examples of where the meter is part of day-to-day life in the USA (instead of inches, yards, and miles).
Eta Aquarids Meteor Shower 2025
The Eta Aquarids will bring up to 50 shooting stars per hour in early May. Here’s how to spot them.
Anniversary of the End of World War II
Germany commemorates the end of the Second World War on May 8 every year.