30 days before June 17, 2026
would be
May 18, 2026 (Monday)
Time Zone: America/New_York (GMT-05:00)
• Day numbers: 138
• Week number: 21
• Leap year: 2026 is not a leap year
• Daylight Saving Time: Yes
Sunrise, Sunset Times for May 18, 2026 (Monday)
• Sunrise time: 06:16 am
• Sunset time: 08:43 pm
• Day length: 14h 26m
• Source: suntoday.org
Moon Phase for May 18, 2026 (Monday)
• Moon Phase: Waxing Crescent
• Illumination: 6%
• Moon Age: 2.48 day(s)
• Source: mooninfo.org
May 18, 2026 Holidays and National Days
May 18 in History
1980
After rumbling for two months, Mount Saint Helens, in Washington, erupts 3 times in 24 hours.
1974
India becomes the sixth nation to explode an atomic bomb.
1969
Two battalions of the 101st Airborne Division assault Hill 937 but cannot reach the top because of muddy conditions.
1951
The United Nations moves its headquarters to New York city.
1944
The Allies finally capture Monte Cassino in Italy.
1942
New York ends night baseball games for the rest of World War II.
1933
President Franklin Roosevelt signs the Tennessee Valley Authority Act.
1931
Japanese pilot Seiji Yoshihara crashes his plane in the Pacific Ocean while trying to be the first to cross the ocean nonstop. He is picked up seven hours later by a passing ship.
1917
The U.S. Congress passes the Selective Service act, calling up soldiers to fight World War I.
→ See more: May 18 in History