At the spring transition 2:00 AM becomes 3:00 AM. At fall 2:00 AM becomes 1:00 AM. NIST rules.
2026 · America/New_York: March 8, 2026 and November 1, 2026.
Places that do not change
Hawaii and most of Arizona do not observe seasonal DST. Navajo Nation observes DST; the Hopi reservation does not. American Samoa, Guam, the Northern Mariana Islands, Puerto Rico and the US Virgin Islands do not observe DST. Check local observance around reservation boundaries. NIST and BTS.
Future dates are conditional
This tool reads installed IANA rules. A future change in law requires refreshed software/data. The calendar is not proof that a proposal has passed.