December 2040

← November This month January → DXpeditions

30 contests running this month. Names only at this zoom — tap a contest for its times, in your own clock or UTC. A contest running across midnight appears on every day it is on the air, with marking the days it continues into rather than starts. Days are UTC, so a contest opening 2200Z sits on the UTC date — which may be the evening before where you are.

Contests in December 2040, by day
Mon	Tue	Wed	Thu	Fri	Sat	Sun
262 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST)	27	283 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) SKCC Straight Key Sprint (SKS)	291 CWops Test (CWT)×2 (2 sessions)	305 ARRL 160-Meter Contest K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS)	14 FT Roundup International FT Challenge USKA Weihnachtswettbewerb (SSB / Digital)×2 (2 sessions) continues: ARRL 160-Meter Contest	23 continues: ARRL 160-Meter Contest continues: FT Roundup continues: International FT Challenge
32 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST)	41 ARS Spartan Sprint	53 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) VHF-UHF FT8 Activity: 144 MHz	62 CWops Test (CWT)×2 (2 sessions) SKCC Straight Key Sprint Europe (SKSE)	74 K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS)	86 ARI 40/80 Contest ARRL 10-Meter Contest PODXS 070 Club Triple Play Low Band Sprint DOUBLEHEADER SKCC Weekend Sprintathon (WES) TRC DIGI Contest USKA Weihnachtswettbewerb (CW / Digital)×2 (2 sessions)	95 continues: ARI 40/80 Contest continues: ARRL 10-Meter Contest continues: PODXS 070 Club Triple Play Low Band Sprint DOUBLEHEADER continues: SKCC Weekend Sprintathon (WES) continues: TRC DIGI Contest
104 4 States QRP Group Second Sunday Sprint (SSS) AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST) continues: PODXS 070 Club Triple Play Low Band Sprint DOUBLEHEADER	111 DARC CW-Ausbildungscontest	123 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) VHF-UHF FT8 Activity: 432 MHz	131 CWops Test (CWT)×2 (2 sessions)	144 K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS)	152 Croatian DX Contest (9A DX) OK DX RTTY Contest	164 ARRL Rookie Roundup, CW ÖVSV VHF/UHF/Microwave Activity Contest continues: Croatian DX Contest (9A DX) continues: OK DX RTTY Contest
172 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST)	18	193 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) VHF-UHF FT8 Activity: 1296 MHz	201 CWops Test (CWT)×2 (2 sessions)	215 AGB-Party K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS)	22	23
242 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST)	25	264 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) DARC Weihnachtswettbewerb (XMAS Contest) SKCC Straight Key Sprint (SKS)	271 CWops Test (CWT)×2 (2 sessions)	284 K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS)	29	30
312 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST)	15 AGB New Year Snowball AGCW Happy New Year Contest (HNY) AGCW VHF/UHF Contest×2 (2 sessions) ARRL Straight Key Night SARTG New Year RTTY Contest	24 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) New Year QSO Party VHF-UHF FT8 Activity: 144 MHz	33 CWops Test (CWT)×2 (2 sessions) SKCC Straight Key Sprint Europe (SKSE) continues: New Year QSO Party	44 NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS) continues: New Year QSO Party	55 ARRL Kids Day (January) ARRL RTTY Roundup PODXS 070 Club PSKfest RSGB AFS Contest, CW continues: New Year QSO Party	63 Vytautas Magnus Contest (VMC) continues: ARRL RTTY Roundup continues: New Year QSO Party

Every session in December 204030

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71 sessions across 30 contests; repeats share a row.

Contests starting in December 2040
Contest	Date	Start	End	Duration	Mode	Band	Sponsor	Starts in
USKA Weihnachtswettbewerb (SSB / Digital) can't enter2 sessions	Sat 1 DecSat 1 Dec	0700Z1000Z	0959Z1059Z	2h 59m59m	SSBRTTYDigitalFT8/FT4PSK31, PSK63	80m/40m	USKA	in 5154 daysin 5154 days
International FT Challenge	Sat 1 Dec	1800Z	2359Z Sun 2 Dec	29h 59m	FT8/FT4FT4, FT8	80-10m	International FT Challenge	in 5155 days
FT Roundup	Sat 1 Dec	1800Z	2359Z Sun 2 Dec	29h 59m	FT8/FT4FT4, FT8	80-10m	RTTY Contesting	in 5155 days
K1USN Slow Speed Test (SST)9 sessions	Mon 3 DecFri 7 DecMon 10 DecFri 14 DecMon 17 DecFri 21 DecMon 24 DecFri 28 DecMon 31 Dec	0000Z2000Z0000Z2000Z0000Z2000Z0000Z2000Z0000Z	0100Z2100Z0100Z2100Z0100Z2100Z0100Z2100Z0100Z	1h	CW	160-10m	K1USN Radio Club	in 5156 daysin 5161 daysin 5163 daysin 5168 daysin 5170 daysin 5175 daysin 5177 daysin 5182 daysin 5184 days
AGCW ZAP Merit Contest (ZMC) unverified5 sessions	Mon 3 DecMon 10 DecMon 17 DecMon 24 DecMon 31 Dec	1740Z1740Z1740Z1740Z1740Z	1830Z1830Z1830Z1830Z1830Z	50m	CW	80m	AGCW-DL	in 5156 daysin 5163 daysin 5170 daysin 5177 daysin 5184 days
ARS Spartan Sprint	Tue 4 Dec	0100Z	0300Z	2h	CW	80-10m	Adventure Radio Society	in 5157 days
A1Club Weekly Test (AWT)4 sessions	Wed 5 DecWed 12 DecWed 19 DecWed 26 Dec	1145Z1145Z1145Z1145Z	1300Z1300Z1300Z1300Z	1h 15m	CW	not recorded	A1 Club	in 5158 daysin 5165 daysin 5172 daysin 5179 days
CWops Test (CWT)16 sessions	Wed 5 DecWed 5 DecThu 6 DecThu 6 DecWed 12 DecWed 12 DecThu 13 DecThu 13 DecWed 19 DecWed 19 DecThu 20 DecThu 20 DecWed 26 DecWed 26 DecThu 27 DecThu 27 Dec	1300Z1900Z0300Z0700Z1300Z1900Z0300Z0700Z1300Z1900Z0300Z0700Z1300Z1900Z0300Z0700Z	1400Z2000Z0400Z0800Z1400Z2000Z0400Z0800Z1400Z2000Z0400Z0800Z1400Z2000Z0400Z0800Z	1h	CW	160-6m	CWops	in 5158 daysin 5159 daysin 5159 daysin 5159 daysin 5165 daysin 5166 daysin 5166 daysin 5166 daysin 5172 daysin 5173 daysin 5173 daysin 5173 daysin 5179 daysin 5180 daysin 5180 daysin 5180 days
VHF-UHF FT8 Activity: 144 MHz unverified	Wed 5 Dec	1700Z	2100Z	4h	FT8/FT4	2m	QSO BANAT Association (YO2KQT)	in 5158 days
SKCC Straight Key Sprint Europe (SKSE)	Thu 6 Dec	2000Z	2200Z	2h	CW	160-6m	Straight Key Century Club	in 5160 days
NCCC FT4 Sprint (FT4 NS)4 sessions	Fri 7 DecFri 14 DecFri 21 DecFri 28 Dec	0100Z0100Z0100Z0100Z	0130Z0130Z0130Z0130Z	30m	FT8/FT4FT4	160-6m	Northern California Contest Club (NCCC)	in 5160 daysin 5167 daysin 5174 daysin 5181 days
NCCC RTTY Sprint (RTTY NS)4 sessions	Fri 7 DecFri 14 DecFri 21 DecFri 28 Dec	0145Z0145Z0145Z0145Z	0215Z0215Z0215Z0215Z	30m	RTTY	160-15m	Northern California Contest Club (NCCC)	in 5160 daysin 5167 daysin 5174 daysin 5181 days
NCCC Sprint (NS)4 sessions	Fri 7 DecFri 14 DecFri 21 DecFri 28 Dec	0230Z0230Z0230Z0230Z	0300Z0300Z0300Z0300Z	30m	CW	160-15m	Northern California Contest Club (NCCC)	in 5160 daysin 5167 daysin 5174 daysin 5181 days
ARRL 10-Meter Contest	Sat 8 Dec	0000Z	2359Z Sun 9 Dec	47h 59m	CWSSB	10m	ARRL	in 5161 days
PODXS 070 Club Triple Play Low Band Sprint DOUBLEHEADER	Sat 8 Dec	0000Z	2359Z Mon 10 Dec	71h 59m	DigitalPSK31	160m/80m/40m	PODXS 070 Club	in 5161 days
TRC DIGI Contest	Sat 8 Dec	0600Z	1800Z Sun 9 Dec	36h	RTTY	160-10m	Thracian Rose Club	in 5161 days
USKA Weihnachtswettbewerb (CW / Digital) can't enter2 sessions	Sat 8 DecSat 8 Dec	0700Z1000Z	0959Z1059Z	2h 59m59m	CWRTTYDigitalFT8/FT4PSK31, PSK63	80m/40m	USKA	in 5161 daysin 5161 days
SKCC Weekend Sprintathon (WES)	Sat 8 Dec	1200Z	2359Z Sun 9 Dec	35h 59m	CW	160-6m	Straight Key Century Club	in 5161 days
ARI 40/80 Contest can't enter	Sat 8 Dec	1300Z	1259Z Sun 9 Dec	23h 59m	CWSSBRTTY	80m/40m	ARI	in 5161 days
4 States QRP Group Second Sunday Sprint (SSS)	Mon 10 Dec	0100Z	0300Z	2h	CWSSBDigital	160-10m	4 States QRP Group	in 5163 days
DARC CW-Ausbildungscontest unverified	Tue 11 Dec	1800Z	1859Z	59m	CW	not recorded	DARC	in 5165 days
VHF-UHF FT8 Activity: 432 MHz unverified	Wed 12 Dec	1700Z	2100Z	4h	FT8/FT4	70cm	QSO BANAT Association (YO2KQT)	in 5165 days
OK DX RTTY Contest	Sat 15 Dec	0000Z	0000Z Sun 16 Dec	24h	RTTYBaudot	80-10m	CRK	in 5168 days
Croatian DX Contest (9A DX)	Sat 15 Dec	1400Z	1359Z Sun 16 Dec	23h 59m	CWSSB	160-10m	HRS	in 5168 days
ÖVSV VHF/UHF/Microwave Activity Contest	Sun 16 Dec	0700Z	1300Z	6h	CWSSBAMFM	6-3cm	ÖVSV	in 5169 days
ARRL Rookie Roundup, CW	Sun 16 Dec	1800Z	2359Z	5h 59m	CW	80-10m	ARRL	in 5170 days
VHF-UHF FT8 Activity: 1296 MHz unverified	Wed 19 Dec	1700Z	2100Z	4h	DigitalFT8	23cm	QSO BANAT Association (YO2KQT)	in 5172 days
AGB-Party unverified	Fri 21 Dec	1600Z	1700Z	1h	CWSSBDigitalFT8, FT4	80m/40m	AGB	in 5174 days
SKCC Straight Key Sprint (SKS)	Wed 26 Dec	0000Z	0200Z	2h	CW	160-6m	Straight Key Century Club	in 5179 days
DARC Weihnachtswettbewerb (XMAS Contest)	Wed 26 Dec	0830Z	1059Z	2h 29m	CWSSB	80m/40m	DARC	in 5179 days

USKA Weihnachtswettbewerb (SSB / Digital) can't enter
SSBRTTYDigitalFT8/FT4PSK31, PSK63 · 80m/40m · USKA
- 0700Z Sat 1 Dec → 0959Z · 2h 59min 5154 days
- 1000Z Sat 1 Dec → 1059Z · 59min 5154 days
International FT Challenge
FT8/FT4FT4, FT8 · 80-10m · International FT Challenge
- 1800Z Sat 1 Dec → 2359Z Sun 2 Dec · 29h 59min 5155 days
FT Roundup
FT8/FT4FT4, FT8 · 80-10m · RTTY Contesting
- 1800Z Sat 1 Dec → 2359Z Sun 2 Dec · 29h 59min 5155 days
K1USN Slow Speed Test (SST)
CW · 160-10m · K1USN Radio Club
- 0000Z Mon 3 Dec → 0100Z · 1hin 5156 days
- 2000Z Fri 7 Dec → 2100Z · 1hin 5161 days
- 0000Z Mon 10 Dec → 0100Z · 1hin 5163 days
- 2000Z Fri 14 Dec → 2100Z · 1hin 5168 days
- 0000Z Mon 17 Dec → 0100Z · 1hin 5170 days
- 2000Z Fri 21 Dec → 2100Z · 1hin 5175 days
- 0000Z Mon 24 Dec → 0100Z · 1hin 5177 days
- 2000Z Fri 28 Dec → 2100Z · 1hin 5182 days
- 0000Z Mon 31 Dec → 0100Z · 1hin 5184 days
AGCW ZAP Merit Contest (ZMC) unverified
CW · 80m · AGCW-DL
- 1740Z Mon 3 Dec → 1830Z · 50min 5156 days
- 1740Z Mon 10 Dec → 1830Z · 50min 5163 days
- 1740Z Mon 17 Dec → 1830Z · 50min 5170 days
- 1740Z Mon 24 Dec → 1830Z · 50min 5177 days
- 1740Z Mon 31 Dec → 1830Z · 50min 5184 days
ARS Spartan Sprint
CW · 80-10m · Adventure Radio Society
- 0100Z Tue 4 Dec → 0300Z · 2hin 5157 days
A1Club Weekly Test (AWT)
CW · A1 Club
- 1145Z Wed 5 Dec → 1300Z · 1h 15min 5158 days
- 1145Z Wed 12 Dec → 1300Z · 1h 15min 5165 days
- 1145Z Wed 19 Dec → 1300Z · 1h 15min 5172 days
- 1145Z Wed 26 Dec → 1300Z · 1h 15min 5179 days
CWops Test (CWT)
CW · 160-6m · CWops
- 1300Z Wed 5 Dec → 1400Z · 1hin 5158 days
- 1900Z Wed 5 Dec → 2000Z · 1hin 5159 days
- 0300Z Thu 6 Dec → 0400Z · 1hin 5159 days
- 0700Z Thu 6 Dec → 0800Z · 1hin 5159 days
- 1300Z Wed 12 Dec → 1400Z · 1hin 5165 days
- 1900Z Wed 12 Dec → 2000Z · 1hin 5166 days
- 0300Z Thu 13 Dec → 0400Z · 1hin 5166 days
- 0700Z Thu 13 Dec → 0800Z · 1hin 5166 days
- 1300Z Wed 19 Dec → 1400Z · 1hin 5172 days
- 1900Z Wed 19 Dec → 2000Z · 1hin 5173 days
- 0300Z Thu 20 Dec → 0400Z · 1hin 5173 days
- 0700Z Thu 20 Dec → 0800Z · 1hin 5173 days
- 1300Z Wed 26 Dec → 1400Z · 1hin 5179 days
- 1900Z Wed 26 Dec → 2000Z · 1hin 5180 days
- 0300Z Thu 27 Dec → 0400Z · 1hin 5180 days
- 0700Z Thu 27 Dec → 0800Z · 1hin 5180 days
VHF-UHF FT8 Activity: 144 MHz unverified
FT8/FT4 · 2m · QSO BANAT Association (YO2KQT)
- 1700Z Wed 5 Dec → 2100Z · 4hin 5158 days
SKCC Straight Key Sprint Europe (SKSE)
CW · 160-6m · Straight Key Century Club
- 2000Z Thu 6 Dec → 2200Z · 2hin 5160 days
NCCC FT4 Sprint (FT4 NS)
FT8/FT4FT4 · 160-6m · Northern California Contest Club (NCCC)
- 0100Z Fri 7 Dec → 0130Z · 30min 5160 days
- 0100Z Fri 14 Dec → 0130Z · 30min 5167 days
- 0100Z Fri 21 Dec → 0130Z · 30min 5174 days
- 0100Z Fri 28 Dec → 0130Z · 30min 5181 days
NCCC RTTY Sprint (RTTY NS)
RTTY · 160-15m · Northern California Contest Club (NCCC)
- 0145Z Fri 7 Dec → 0215Z · 30min 5160 days
- 0145Z Fri 14 Dec → 0215Z · 30min 5167 days
- 0145Z Fri 21 Dec → 0215Z · 30min 5174 days
- 0145Z Fri 28 Dec → 0215Z · 30min 5181 days
NCCC Sprint (NS)
CW · 160-15m · Northern California Contest Club (NCCC)
- 0230Z Fri 7 Dec → 0300Z · 30min 5160 days
- 0230Z Fri 14 Dec → 0300Z · 30min 5167 days
- 0230Z Fri 21 Dec → 0300Z · 30min 5174 days
- 0230Z Fri 28 Dec → 0300Z · 30min 5181 days
ARRL 10-Meter Contest
CWSSB · 10m · ARRL
- 0000Z Sat 8 Dec → 2359Z Sun 9 Dec · 47h 59min 5161 days
PODXS 070 Club Triple Play Low Band Sprint DOUBLEHEADER
DigitalPSK31 · 160m/80m/40m · PODXS 070 Club
- 0000Z Sat 8 Dec → 2359Z Mon 10 Dec · 71h 59min 5161 days
TRC DIGI Contest
RTTY · 160-10m · Thracian Rose Club
- 0600Z Sat 8 Dec → 1800Z Sun 9 Dec · 36hin 5161 days
USKA Weihnachtswettbewerb (CW / Digital) can't enter
CWRTTYDigitalFT8/FT4PSK31, PSK63 · 80m/40m · USKA
- 0700Z Sat 8 Dec → 0959Z · 2h 59min 5161 days
- 1000Z Sat 8 Dec → 1059Z · 59min 5161 days
SKCC Weekend Sprintathon (WES)
CW · 160-6m · Straight Key Century Club
- 1200Z Sat 8 Dec → 2359Z Sun 9 Dec · 35h 59min 5161 days
ARI 40/80 Contest can't enter
CWSSBRTTY · 80m/40m · ARI
- 1300Z Sat 8 Dec → 1259Z Sun 9 Dec · 23h 59min 5161 days
4 States QRP Group Second Sunday Sprint (SSS)
CWSSBDigital · 160-10m · 4 States QRP Group
- 0100Z Mon 10 Dec → 0300Z · 2hin 5163 days
DARC CW-Ausbildungscontest unverified
CW · DARC
- 1800Z Tue 11 Dec → 1859Z · 59min 5165 days
VHF-UHF FT8 Activity: 432 MHz unverified
FT8/FT4 · 70cm · QSO BANAT Association (YO2KQT)
- 1700Z Wed 12 Dec → 2100Z · 4hin 5165 days
OK DX RTTY Contest
RTTYBaudot · 80-10m · CRK
- 0000Z Sat 15 Dec → 0000Z Sun 16 Dec · 24hin 5168 days
Croatian DX Contest (9A DX)
CWSSB · 160-10m · HRS
- 1400Z Sat 15 Dec → 1359Z Sun 16 Dec · 23h 59min 5168 days
ÖVSV VHF/UHF/Microwave Activity Contest
CWSSBAMFM · 6-3cm · ÖVSV
- 0700Z Sun 16 Dec → 1300Z · 6hin 5169 days
ARRL Rookie Roundup, CW
CW · 80-10m · ARRL
- 1800Z Sun 16 Dec → 2359Z · 5h 59min 5170 days
VHF-UHF FT8 Activity: 1296 MHz unverified
DigitalFT8 · 23cm · QSO BANAT Association (YO2KQT)
- 1700Z Wed 19 Dec → 2100Z · 4hin 5172 days
AGB-Party unverified
CWSSBDigitalFT8, FT4 · 80m/40m · AGB
- 1600Z Fri 21 Dec → 1700Z · 1hin 5174 days
SKCC Straight Key Sprint (SKS)
CW · 160-6m · Straight Key Century Club
- 0000Z Wed 26 Dec → 0200Z · 2hin 5179 days
DARC Weihnachtswettbewerb (XMAS Contest)
CWSSB · 80m/40m · DARC
- 0830Z Wed 26 Dec → 1059Z · 2h 29min 5179 days

December 2040

Every session in December 204030

USKA Weihnachtswettbewerb (SSB / Digital) can't enter

AGCW ZAP Merit Contest (ZMC) unverified

VHF-UHF FT8 Activity: 144 MHz unverified

USKA Weihnachtswettbewerb (CW / Digital) can't enter

ARI 40/80 Contest can't enter

DARC CW-Ausbildungscontest unverified

VHF-UHF FT8 Activity: 432 MHz unverified

VHF-UHF FT8 Activity: 1296 MHz unverified

AGB-Party unverified