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Perpetual calendar

http://www.arrl.org/rtty-roundup
http://www.darc.de/referate/dx/contest/10m/en/
HA DX Contest - 3rd full weekend of January
UBA DX Contest SSB - last Saturday of January
CQ WW 160M - last full weekend of January
REF Contest - last full weekend of January
http://bscc.ucoz.ru/index/rules_black_sea_cup_international_eng/0-21
CQ WPX RTTY - 2nd full weekend of February
Dutch PACC Contest - Second full weekend of February
ARRL International DX Contest - 3rd full weekend of February
UBA DX Contest CW - last Saturday on February
CQ World Wide 160-Meter SSB - last full weekend of February
REF Contest SSB - last full weekend of February
HSC CW Contest
ARRL International DX Contest SSB - 1st full weekend of March
http://krs.ho.ua/openrtty/
Russian DX Contest - 3rd full weekend of March
CQ World Wide WPX Contest SSB - last full weekend of March
SP DX Contest - 1st full weekend of April
OK-OM DX Contest SSB - 2nd full weekend of April
Japan International DX Contest CW - 2nd full weekend of April
Yuri Gagarin DX Contest - 2nd full weekend of April
YU DX Contest - 3rd full weekend of April
http://www.cqmmdx.com/rules/
ARI International DX - 1st full weekend of May
CQ-M International DX Contest - 2nd full weekend of May
King Of Spain CW Contest - 3rd full weekend of May
CQ World Wide WPX CW - last full weekend of May
IARU Region 1 Fieldday CW - 1sr full weekend of June
World Wide South America Contest - 2nd full weekend of June
King of Spain SSB Contest - 4th full weekend of June
IARU HF Championship
CQ World Wide VHF Contest
IOTA Contest - last full weekend of July
EU HF Championship - 1st Saturday of August
Worked All Europe DX Contest CW - 2nd full weekend of August
YODX HF Contest - last full weekend of August
IARU Region 1 Fieldday SSB - 1st full weekend of September
Worked All Europe DX Contest SSB - 2nd full weekend of September
Scandinavian Activity Contest - 3rd full weekend of September
CQ World Wide RTTY Contest - last full weekend of September
Scandinavian Activity Contest SSB - 2nd full weekend of October
Makrothen RTTY Contest - 2nd full weekend of October
http://www.darc.de/der-club/referate/conteste/worked-all-germany-contest/en/
CQ World Wide DX Contest SSB - last full weekend of October
Ukrainian DX Contest - 1st full weekend of November
HSC CW Contest
Worked All Europe DX Contest RTTY - 2nd full weekend of November
Japan International DX Contest SSB - 2nd full weekend of November
OK-OM DX Contest CW - 2nd full weekend of November
LZ DX Contest - weekend before last full weekend of November
CQ World Wide DX Contest CW - last full weekend of November
ARRL 160 Meter CW Contest - 1st full weekend of December
ARRL 10 Meter Contest - 2nd full weekend of December
Croatian CW Contest - 3rd full weekend of December
http://www.darc.de/referate/dx/contest/xmas/en/
RAEM International HF Contest - Sunday of the 4th full weekend of December