HamSphere 4.0 Contest Calendar
Welcome to the official HamSphere 4.0 contest calendar (Subject to change)

If you have not participated in a Ham Radio contest before, here is an easy guideline
Create your own contests, please send a request to contest@hamsphere.com stating your contest idea and we will listen.
ContestStarts UTCEnds UTCLog Deadline UTCJoin
2015
 HamSphere 4 New Year Contest 2015 2015-01-01 09:002015-01-02 08:592015-01-03 00:00
 East & South East Asia Lunar New Year Contest 2015 2015-02-19 00:002015-02-20 23:592015-02-25 00:00
 HamSphere 4.0 CIS & Baltic May Day contest 2015-05-02 00:002015-05-02 23:592015-05-05 00:00
 HamSphere 4th of July Contest 2015 HS4 2015-07-04 00:002015-07-04 23:592015-07-07 00:00
 Independence Day of Indonesia HamSphere 4.0 Contest 2015  2015-08-17 00:002015-08-17 23:592015-08-20 00:00
 HamSphere 4.0 CW Contest 2015 2015-09-05 00:002015-09-05 23:592015-09-08 00:00
 HamSphere 4.0 RDF Contest 2015 2015-09-12 00:002015-09-20 07:002015-09-22 07:00
 HamSphere 4.0 VHF/UHF Relay Sprint 2015-09-26 14:002015-09-26 16:002015-09-27 12:00
 The North American Fall Challenge 2015-11-07 00:002015-11-08 23:592015-11-10 00:00
 Late Night DX Gang Worldwide Prefixes contest 2015 2015-11-21 00:002015-11-21 23:592015-11-23 00:00
 The North American Fall Classic 2015-12-05 00:002015-12-05 23:592015-12-09 00:00
2016
 HamSphere 4.0 Spring Contest 2016 2016-04-09 00:002016-04-10 23:592016-04-12 00:00
 HamSphere 4.0 CIS & Baltic May Day contest 2016-05-07 00:002016-05-07 23:592016-05-10 00:00
 HamSphere 4.0 French DX contest 2016 2016-07-16 00:002016-07-17 23:592016-07-19 00:00
 HamSphere 4.0 CW Contest 2016 2016-09-03 00:002016-09-04 00:002016-09-05 00:00
 Late Night DX Gang Worldwide Prefixes contest 2016 2016-11-19 00:002016-11-20 23:592016-11-21 00:00
 The North American Low Frequency Contest 2016 2016-12-03 00:002016-12-03 23:592016-12-05 00:00
 The North American High Frequency Contest 2016 2016-12-17 00:002016-12-17 23:592016-12-19 00:00
2017
 HamSphere 4.0 New Year Contest 2017 2017-01-14 00:002017-01-14 23:592017-01-15 23:59
 HamSphere 4.0 All Asia DX contest 2017 2017-02-18 00:002017-02-18 23:592017-02-19 23:59
 Late Night DX Gang European Union Open Championship 2017 2017-03-04 00:012017-03-04 23:592017-03-05 23:59
 HamSphere 4.0 Pacific Ocean Contest 2017 2017-03-25 00:002017-03-25 23:592017-03-26 23:59
 HamSphere 4.0 Spring Contest 2017 2017-04-08 00:002017-04-09 23:592017-04-10 23:59
 HamSphere 4.0 CIS & Baltic May Day contest 2017-05-06 00:002017-05-06 23:592017-05-07 23:59
 HamSphere 4.0 Summer Contest 2017 2017-06-10 00:002017-06-11 23:592017-06-12 23:59
 HamSphere 4.0 French DX contest 2017 2017-07-15 00:002017-07-15 23:592017-07-16 23:59
 HamSphere 4.0 British contest 2017 2017-08-05 00:002017-08-05 23:592017-08-07 23:59
 HamSphere 4.0 CW Contest 2017 2017-09-02 00:002017-09-02 23:592017-09-03 23:59
 HamSphere 4.0 Southern Hemisphere contest 2017 2017-09-23 00:002017-09-23 23:592017-09-24 23:59
 HamSphere 4.0 Russian Federation Contest 2017 2017-10-28 00:002017-10-28 23:592017-10-30 23:59
 Late Night DX Gang Worldwide Prefixes contest 2017 2017-11-25 00:002017-11-26 23:592017-11-27 23:59
 The North American Winter Contest 2017 2017-12-16 00:002017-12-17 23:592017-12-18 23:59
2018
 HamSphere 4.0 New Year Contest 2018 2018-01-06 00:002018-01-06 23:592018-01-09 23:59
 HamSphere 4.0 Benelux contest 2018 2018-01-20 00:002018-01-20 23:592018-01-23 23:59
 HamSphere 4.0 All Asia DX contest 2018 2018-02-17 00:002018-02-17 23:592018-02-20 23:59
 HamSphere 4.0 4-hour series contest stage 1 2018-02-24 00:002018-02-24 03:592018-02-27 23:59
 Late Night DX Gang European Union Open Championship 2018 2018-03-10 07:002018-03-11 06:592018-03-14 23:59
 HamSphere 4.0 Pacific Ocean Contest 2018 2018-03-24 00:002018-03-24 23:592018-03-28 23:59
 HamSphere 4.0 Latin America and Caribbeans contest 2018 2018-04-07 07:002018-04-08 06:592018-04-11 23:59
 HamSphere 4.0 4-hour series contest stage 2 2018-04-28 04:002018-04-28 07:592018-05-02 23:59
 HamSphere 4.0 CIS & Baltic May Day contest 2018 2018-05-05 04:002018-05-06 03:592018-05-09 23:59
 HamSphere 4.0 PSK31 contest 2018 2018-05-26 04:002018-05-27 03:592018-05-30 23:59
 HamSphere 4.0 Summer contest 2018 2018-06-09 00:002018-06-10 23:592018-06-14 23:59
 HamSphere 4.0 4-hour series contest stage 3 2018-06-30 08:002018-06-30 11:592018-07-04 23:59
 HamSphere 4.0 French DX contest 2018 2018-07-14 07:002018-07-15 06:592018-07-19 23:59
 HamSphere 4.0 Summer CW contest 2018 2018-07-21 04:002018-07-22 03:592018-07-26 23:59
 HamSphere 4.0 British contest 2018 2018-08-04 07:002018-08-05 06:592018-08-09 23:59JOIN
 HamSphere 4.0 SSTV contest 2018 2018-08-18 04:002018-08-19 03:592018-08-22 23:59JOIN
 HamSphere 4.0 4-hour series contest stage 4 2018-08-25 12:002018-08-25 15:592018-08-29 23:59JOIN
 HamSphere 4.0 RTTY Contest 2018 2018-09-01 04:002018-09-02 03:592018-09-06 23:59JOIN
 HamSphere 4.0 Southern Hemisphere contest 2018 2018-09-22 00:002018-09-22 23:592018-09-26 23:59JOIN
 HamSphere 4.0 4-hour series contest stage 5 2018-10-06 16:002018-10-06 19:592018-10-10 23:59JOIN
 HamSphere 4.0 Russian Federation Contest 2018 2018-10-27 07:002018-10-28 06:592018-10-30 23:59JOIN
 HamSphere 4.0 VHF/UHF Relay Sprint 2018 2018-11-10 16:002018-11-10 17:592018-11-14 23:59JOIN
 Late Night DX Gang Worldwide Prefixes contest 2018 2018-11-24 00:002018-11-25 23:592018-11-29 23:59JOIN
 HamSphere 4.0 4-hour series contest stage 6 2018-12-08 20:002018-12-08 23:592018-12-12 23:59JOIN
 The North American Winter Contest 2018 2018-12-15 00:002018-12-15 23:592018-12-20 23:59JOIN
 HamSphere 4.0 Winter CW contest 2018 2018-12-29 04:002018-12-30 03:592019-01-03 23:59JOIN