ARRL January VHF

The date will be announced annually by the ARRL but will generally be the third or fourth weekend in January. Begins 1900 UTC Saturday, ends 0359 UTC Monday. http://www.arrl.org/january-vhf

Winter Field Day

Winter Field Day runs for 24 hours during the last full weekend in January each year from 1900 UTC (2pm EST) Saturday to 1900 UTC (2pm EST) Sunday. For 2018, the dates are January 26th and 27th. Station set-up may commence no earlier than 1900 UTC (2pm EST) on Friday, January 26th. Station setup may ... Read more...

ARRL DX – SSB

CW: Third full weekend in February. Phone: First full weekend in March. Contest Period: 48 hours each mode. Starts 0000 UTC Saturday; ends 2359 UTC Sunday. http://www.arrl.org/arrl-dx

ARRL Rookie Roundup – SSB

The third Sunday of April, August and December from 1800 UTC through 2359 UTC. http://www.arrl.org/rookie-roundup