The VHF, UHF and microwave contest weekends: the ARRL January, June and September VHF contests, CQ World Wide VHF (analog and digital) and the IARU Region 1 contests on 50 MHz, 145 MHz, UHF and the microwave bands.
Each contest is shown at its real start and end time in your time zone. Select one for its bands, modes and a link to the rules.
In Amateur Radio. Perfect Clock — a world clock with your calendar across time zones.