December 2050

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31 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 2050, by day
Mon	Tue	Wed	Thu	Fri	Sat	Sun
282 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST)	29	302 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions)	12 CWops Test (CWT)×2 (2 sessions) SKCC Straight Key Sprint Europe (SKSE)	25 ARRL 160-Meter Contest K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS)	34 FT Roundup International FT Challenge USKA Weihnachtswettbewerb (SSB / Digital)×2 (2 sessions) continues: ARRL 160-Meter Contest	43 continues: ARRL 160-Meter Contest continues: FT Roundup continues: International FT Challenge
52 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST)	61 ARS Spartan Sprint	73 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) VHF-UHF FT8 Activity: 144 MHz	81 CWops Test (CWT)×2 (2 sessions)	94 K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS)	106 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)	115 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
124 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	131 DARC CW-Ausbildungscontest	143 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) VHF-UHF FT8 Activity: 432 MHz	151 CWops Test (CWT)×2 (2 sessions)	165 AGB-Party K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS)	172 Croatian DX Contest (9A DX) OK DX RTTY Contest	184 ARRL Rookie Roundup, CW ÖVSV VHF/UHF/Microwave Activity Contest continues: Croatian DX Contest (9A DX) continues: OK DX RTTY Contest
192 AGCW ZAP Merit Contest (ZMC) K1USN Slow Speed Test (SST)	20	213 A1Club Weekly Test (AWT) CWops Test (CWT)×2 (2 sessions) VHF-UHF FT8 Activity: 1296 MHz	221 CWops Test (CWT)×2 (2 sessions)	234 K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS)	24	25
263 AGCW ZAP Merit Contest (ZMC) DARC Weihnachtswettbewerb (XMAS Contest) 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)	304 K1USN Slow Speed Test (SST) NCCC FT4 Sprint (FT4 NS) NCCC RTTY Sprint (RTTY NS) NCCC Sprint (NS)	31	16 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 Vytautas Magnus Contest (VMC)

Every session in December 205031

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76 sessions across 31 contests; repeats share a row.

Contests starting in December 2050
Contest	Date	Start	End	Duration	Mode	Band	Sponsor	Starts in
CWops Test (CWT)18 sessions	Thu 1 DecThu 1 DecWed 7 DecWed 7 DecThu 8 DecThu 8 DecWed 14 DecWed 14 DecThu 15 DecThu 15 DecWed 21 DecWed 21 DecThu 22 DecThu 22 DecWed 28 DecWed 28 DecThu 29 DecThu 29 Dec	0300Z0700Z1300Z1900Z0300Z0700Z1300Z1900Z0300Z0700Z1300Z1900Z0300Z0700Z1300Z1900Z0300Z0700Z	0400Z0800Z1400Z2000Z0400Z0800Z1400Z2000Z0400Z0800Z1400Z2000Z0400Z0800Z1400Z2000Z0400Z0800Z	1h	CW	160-6m	CWops	in 8804 daysin 8804 daysin 8810 daysin 8811 daysin 8811 daysin 8811 daysin 8817 daysin 8818 daysin 8818 daysin 8818 daysin 8824 daysin 8825 daysin 8825 daysin 8825 daysin 8831 daysin 8832 daysin 8832 daysin 8832 days
SKCC Straight Key Sprint Europe (SKSE)	Thu 1 Dec	2000Z	2200Z	2h	CW	160-6m	Straight Key Century Club	in 8805 days
NCCC FT4 Sprint (FT4 NS)5 sessions	Fri 2 DecFri 9 DecFri 16 DecFri 23 DecFri 30 Dec	0100Z0100Z0100Z0100Z0100Z	0130Z0130Z0130Z0130Z0130Z	30m	FT8/FT4FT4	160-6m	Northern California Contest Club (NCCC)	in 8805 daysin 8812 daysin 8819 daysin 8826 daysin 8833 days
NCCC RTTY Sprint (RTTY NS)5 sessions	Fri 2 DecFri 9 DecFri 16 DecFri 23 DecFri 30 Dec	0145Z0145Z0145Z0145Z0145Z	0215Z0215Z0215Z0215Z0215Z	30m	RTTY	160-15m	Northern California Contest Club (NCCC)	in 8805 daysin 8812 daysin 8819 daysin 8826 daysin 8833 days
NCCC Sprint (NS)5 sessions	Fri 2 DecFri 9 DecFri 16 DecFri 23 DecFri 30 Dec	0230Z0230Z0230Z0230Z0230Z	0300Z0300Z0300Z0300Z0300Z	30m	CW	160-15m	Northern California Contest Club (NCCC)	in 8805 daysin 8812 daysin 8819 daysin 8826 daysin 8833 days
K1USN Slow Speed Test (SST)9 sessions	Fri 2 DecMon 5 DecFri 9 DecMon 12 DecFri 16 DecMon 19 DecFri 23 DecMon 26 DecFri 30 Dec	2000Z0000Z2000Z0000Z2000Z0000Z2000Z0000Z2000Z	2100Z0100Z2100Z0100Z2100Z0100Z2100Z0100Z2100Z	1h	CW	160-10m	K1USN Radio Club	in 8806 daysin 8808 daysin 8813 daysin 8815 daysin 8820 daysin 8822 daysin 8827 daysin 8829 daysin 8834 days
ARRL 160-Meter Contest	Fri 2 Dec	2200Z	1559Z Sun 4 Dec	41h 59m	CW	160m	ARRL	in 8806 days
USKA Weihnachtswettbewerb (SSB / Digital) can't enter2 sessions	Sat 3 DecSat 3 Dec	0700Z1000Z	0959Z1059Z	2h 59m59m	SSBRTTYDigitalFT8/FT4PSK31, PSK63	80m/40m	USKA	in 8806 daysin 8806 days
International FT Challenge	Sat 3 Dec	1800Z	2359Z Sun 4 Dec	29h 59m	FT8/FT4FT4, FT8	80-10m	International FT Challenge	in 8807 days
FT Roundup	Sat 3 Dec	1800Z	2359Z Sun 4 Dec	29h 59m	FT8/FT4FT4, FT8	80-10m	RTTY Contesting	in 8807 days
AGCW ZAP Merit Contest (ZMC) unverified4 sessions	Mon 5 DecMon 12 DecMon 19 DecMon 26 Dec	1740Z1740Z1740Z1740Z	1830Z1830Z1830Z1830Z	50m	CW	80m	AGCW-DL	in 8808 daysin 8815 daysin 8822 daysin 8829 days
ARS Spartan Sprint	Tue 6 Dec	0100Z	0300Z	2h	CW	80-10m	Adventure Radio Society	in 8809 days
A1Club Weekly Test (AWT)4 sessions	Wed 7 DecWed 14 DecWed 21 DecWed 28 Dec	1145Z1145Z1145Z1145Z	1300Z1300Z1300Z1300Z	1h 15m	CW	not recorded	A1 Club	in 8810 daysin 8817 daysin 8824 daysin 8831 days
VHF-UHF FT8 Activity: 144 MHz unverified	Wed 7 Dec	1700Z	2100Z	4h	FT8/FT4	2m	QSO BANAT Association (YO2KQT)	in 8810 days
ARRL 10-Meter Contest	Sat 10 Dec	0000Z	2359Z Sun 11 Dec	47h 59m	CWSSB	10m	ARRL	in 8813 days
PODXS 070 Club Triple Play Low Band Sprint DOUBLEHEADER	Sat 10 Dec	0000Z	2359Z Mon 12 Dec	71h 59m	DigitalPSK31	160m/80m/40m	PODXS 070 Club	in 8813 days
TRC DIGI Contest	Sat 10 Dec	0600Z	1800Z Sun 11 Dec	36h	RTTY	160-10m	Thracian Rose Club	in 8813 days
USKA Weihnachtswettbewerb (CW / Digital) can't enter2 sessions	Sat 10 DecSat 10 Dec	0700Z1000Z	0959Z1059Z	2h 59m59m	CWRTTYDigitalFT8/FT4PSK31, PSK63	80m/40m	USKA	in 8813 daysin 8813 days
SKCC Weekend Sprintathon (WES)	Sat 10 Dec	1200Z	2359Z Sun 11 Dec	35h 59m	CW	160-6m	Straight Key Century Club	in 8813 days
ARI 40/80 Contest can't enter	Sat 10 Dec	1300Z	1259Z Sun 11 Dec	23h 59m	CWSSBRTTY	80m/40m	ARI	in 8813 days
4 States QRP Group Second Sunday Sprint (SSS)	Mon 12 Dec	0100Z	0300Z	2h	CWSSBDigital	160-10m	4 States QRP Group	in 8815 days
DARC CW-Ausbildungscontest unverified	Tue 13 Dec	1800Z	1859Z	59m	CW	not recorded	DARC	in 8817 days
VHF-UHF FT8 Activity: 432 MHz unverified	Wed 14 Dec	1700Z	2100Z	4h	FT8/FT4	70cm	QSO BANAT Association (YO2KQT)	in 8817 days
AGB-Party unverified	Fri 16 Dec	1600Z	1700Z	1h	CWSSBDigitalFT8, FT4	80m/40m	AGB	in 8819 days
OK DX RTTY Contest	Sat 17 Dec	0000Z	0000Z Sun 18 Dec	24h	RTTYBaudot	80-10m	CRK	in 8820 days
Croatian DX Contest (9A DX)	Sat 17 Dec	1400Z	1359Z Sun 18 Dec	23h 59m	CWSSB	160-10m	HRS	in 8820 days
ÖVSV VHF/UHF/Microwave Activity Contest	Sun 18 Dec	0700Z	1300Z	6h	CWSSBAMFM	6-3cm	ÖVSV	in 8821 days
ARRL Rookie Roundup, CW	Sun 18 Dec	1800Z	2359Z	5h 59m	CW	80-10m	ARRL	in 8822 days
VHF-UHF FT8 Activity: 1296 MHz unverified	Wed 21 Dec	1700Z	2100Z	4h	DigitalFT8	23cm	QSO BANAT Association (YO2KQT)	in 8824 days
DARC Weihnachtswettbewerb (XMAS Contest)	Mon 26 Dec	0830Z	1059Z	2h 29m	CWSSB	80m/40m	DARC	in 8829 days
SKCC Straight Key Sprint (SKS)	Wed 28 Dec	0000Z	0200Z	2h	CW	160-6m	Straight Key Century Club	in 8831 days

CWops Test (CWT)
CW · 160-6m · CWops
- 0300Z Thu 1 Dec → 0400Z · 1hin 8804 days
- 0700Z Thu 1 Dec → 0800Z · 1hin 8804 days
- 1300Z Wed 7 Dec → 1400Z · 1hin 8810 days
- 1900Z Wed 7 Dec → 2000Z · 1hin 8811 days
- 0300Z Thu 8 Dec → 0400Z · 1hin 8811 days
- 0700Z Thu 8 Dec → 0800Z · 1hin 8811 days
- 1300Z Wed 14 Dec → 1400Z · 1hin 8817 days
- 1900Z Wed 14 Dec → 2000Z · 1hin 8818 days
- 0300Z Thu 15 Dec → 0400Z · 1hin 8818 days
- 0700Z Thu 15 Dec → 0800Z · 1hin 8818 days
- 1300Z Wed 21 Dec → 1400Z · 1hin 8824 days
- 1900Z Wed 21 Dec → 2000Z · 1hin 8825 days
- 0300Z Thu 22 Dec → 0400Z · 1hin 8825 days
- 0700Z Thu 22 Dec → 0800Z · 1hin 8825 days
- 1300Z Wed 28 Dec → 1400Z · 1hin 8831 days
- 1900Z Wed 28 Dec → 2000Z · 1hin 8832 days
- 0300Z Thu 29 Dec → 0400Z · 1hin 8832 days
- 0700Z Thu 29 Dec → 0800Z · 1hin 8832 days
SKCC Straight Key Sprint Europe (SKSE)
CW · 160-6m · Straight Key Century Club
- 2000Z Thu 1 Dec → 2200Z · 2hin 8805 days
NCCC FT4 Sprint (FT4 NS)
FT8/FT4FT4 · 160-6m · Northern California Contest Club (NCCC)
- 0100Z Fri 2 Dec → 0130Z · 30min 8805 days
- 0100Z Fri 9 Dec → 0130Z · 30min 8812 days
- 0100Z Fri 16 Dec → 0130Z · 30min 8819 days
- 0100Z Fri 23 Dec → 0130Z · 30min 8826 days
- 0100Z Fri 30 Dec → 0130Z · 30min 8833 days
NCCC RTTY Sprint (RTTY NS)
RTTY · 160-15m · Northern California Contest Club (NCCC)
- 0145Z Fri 2 Dec → 0215Z · 30min 8805 days
- 0145Z Fri 9 Dec → 0215Z · 30min 8812 days
- 0145Z Fri 16 Dec → 0215Z · 30min 8819 days
- 0145Z Fri 23 Dec → 0215Z · 30min 8826 days
- 0145Z Fri 30 Dec → 0215Z · 30min 8833 days
NCCC Sprint (NS)
CW · 160-15m · Northern California Contest Club (NCCC)
- 0230Z Fri 2 Dec → 0300Z · 30min 8805 days
- 0230Z Fri 9 Dec → 0300Z · 30min 8812 days
- 0230Z Fri 16 Dec → 0300Z · 30min 8819 days
- 0230Z Fri 23 Dec → 0300Z · 30min 8826 days
- 0230Z Fri 30 Dec → 0300Z · 30min 8833 days
K1USN Slow Speed Test (SST)
CW · 160-10m · K1USN Radio Club
- 2000Z Fri 2 Dec → 2100Z · 1hin 8806 days
- 0000Z Mon 5 Dec → 0100Z · 1hin 8808 days
- 2000Z Fri 9 Dec → 2100Z · 1hin 8813 days
- 0000Z Mon 12 Dec → 0100Z · 1hin 8815 days
- 2000Z Fri 16 Dec → 2100Z · 1hin 8820 days
- 0000Z Mon 19 Dec → 0100Z · 1hin 8822 days
- 2000Z Fri 23 Dec → 2100Z · 1hin 8827 days
- 0000Z Mon 26 Dec → 0100Z · 1hin 8829 days
- 2000Z Fri 30 Dec → 2100Z · 1hin 8834 days
ARRL 160-Meter Contest
CW · 160m · ARRL
- 2200Z Fri 2 Dec → 1559Z Sun 4 Dec · 41h 59min 8806 days
USKA Weihnachtswettbewerb (SSB / Digital) can't enter
SSBRTTYDigitalFT8/FT4PSK31, PSK63 · 80m/40m · USKA
- 0700Z Sat 3 Dec → 0959Z · 2h 59min 8806 days
- 1000Z Sat 3 Dec → 1059Z · 59min 8806 days
International FT Challenge
FT8/FT4FT4, FT8 · 80-10m · International FT Challenge
- 1800Z Sat 3 Dec → 2359Z Sun 4 Dec · 29h 59min 8807 days
FT Roundup
FT8/FT4FT4, FT8 · 80-10m · RTTY Contesting
- 1800Z Sat 3 Dec → 2359Z Sun 4 Dec · 29h 59min 8807 days
AGCW ZAP Merit Contest (ZMC) unverified
CW · 80m · AGCW-DL
- 1740Z Mon 5 Dec → 1830Z · 50min 8808 days
- 1740Z Mon 12 Dec → 1830Z · 50min 8815 days
- 1740Z Mon 19 Dec → 1830Z · 50min 8822 days
- 1740Z Mon 26 Dec → 1830Z · 50min 8829 days
ARS Spartan Sprint
CW · 80-10m · Adventure Radio Society
- 0100Z Tue 6 Dec → 0300Z · 2hin 8809 days
A1Club Weekly Test (AWT)
CW · A1 Club
- 1145Z Wed 7 Dec → 1300Z · 1h 15min 8810 days
- 1145Z Wed 14 Dec → 1300Z · 1h 15min 8817 days
- 1145Z Wed 21 Dec → 1300Z · 1h 15min 8824 days
- 1145Z Wed 28 Dec → 1300Z · 1h 15min 8831 days
VHF-UHF FT8 Activity: 144 MHz unverified
FT8/FT4 · 2m · QSO BANAT Association (YO2KQT)
- 1700Z Wed 7 Dec → 2100Z · 4hin 8810 days
ARRL 10-Meter Contest
CWSSB · 10m · ARRL
- 0000Z Sat 10 Dec → 2359Z Sun 11 Dec · 47h 59min 8813 days
PODXS 070 Club Triple Play Low Band Sprint DOUBLEHEADER
DigitalPSK31 · 160m/80m/40m · PODXS 070 Club
- 0000Z Sat 10 Dec → 2359Z Mon 12 Dec · 71h 59min 8813 days
TRC DIGI Contest
RTTY · 160-10m · Thracian Rose Club
- 0600Z Sat 10 Dec → 1800Z Sun 11 Dec · 36hin 8813 days
USKA Weihnachtswettbewerb (CW / Digital) can't enter
CWRTTYDigitalFT8/FT4PSK31, PSK63 · 80m/40m · USKA
- 0700Z Sat 10 Dec → 0959Z · 2h 59min 8813 days
- 1000Z Sat 10 Dec → 1059Z · 59min 8813 days
SKCC Weekend Sprintathon (WES)
CW · 160-6m · Straight Key Century Club
- 1200Z Sat 10 Dec → 2359Z Sun 11 Dec · 35h 59min 8813 days
ARI 40/80 Contest can't enter
CWSSBRTTY · 80m/40m · ARI
- 1300Z Sat 10 Dec → 1259Z Sun 11 Dec · 23h 59min 8813 days
4 States QRP Group Second Sunday Sprint (SSS)
CWSSBDigital · 160-10m · 4 States QRP Group
- 0100Z Mon 12 Dec → 0300Z · 2hin 8815 days
DARC CW-Ausbildungscontest unverified
CW · DARC
- 1800Z Tue 13 Dec → 1859Z · 59min 8817 days
VHF-UHF FT8 Activity: 432 MHz unverified
FT8/FT4 · 70cm · QSO BANAT Association (YO2KQT)
- 1700Z Wed 14 Dec → 2100Z · 4hin 8817 days
AGB-Party unverified
CWSSBDigitalFT8, FT4 · 80m/40m · AGB
- 1600Z Fri 16 Dec → 1700Z · 1hin 8819 days
OK DX RTTY Contest
RTTYBaudot · 80-10m · CRK
- 0000Z Sat 17 Dec → 0000Z Sun 18 Dec · 24hin 8820 days
Croatian DX Contest (9A DX)
CWSSB · 160-10m · HRS
- 1400Z Sat 17 Dec → 1359Z Sun 18 Dec · 23h 59min 8820 days
ÖVSV VHF/UHF/Microwave Activity Contest
CWSSBAMFM · 6-3cm · ÖVSV
- 0700Z Sun 18 Dec → 1300Z · 6hin 8821 days
ARRL Rookie Roundup, CW
CW · 80-10m · ARRL
- 1800Z Sun 18 Dec → 2359Z · 5h 59min 8822 days
VHF-UHF FT8 Activity: 1296 MHz unverified
DigitalFT8 · 23cm · QSO BANAT Association (YO2KQT)
- 1700Z Wed 21 Dec → 2100Z · 4hin 8824 days
DARC Weihnachtswettbewerb (XMAS Contest)
CWSSB · 80m/40m · DARC
- 0830Z Mon 26 Dec → 1059Z · 2h 29min 8829 days
SKCC Straight Key Sprint (SKS)
CW · 160-6m · Straight Key Century Club
- 0000Z Wed 28 Dec → 0200Z · 2hin 8831 days

December 2050

Every session in December 205031

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

AGB-Party unverified

VHF-UHF FT8 Activity: 1296 MHz unverified