December 2033

← November This month January → DXpeditions

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 2033, 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 203331

Export this viewCSV

76 sessions across 31 contests; repeats share a row.

Contests starting in December 2033
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 2599 daysin 2599 daysin 2606 daysin 2606 daysin 2606 daysin 2606 daysin 2613 daysin 2613 daysin 2613 daysin 2613 daysin 2620 daysin 2620 daysin 2620 daysin 2620 daysin 2627 daysin 2627 daysin 2627 daysin 2627 days
SKCC Straight Key Sprint Europe (SKSE)	Thu 1 Dec	2000Z	2200Z	2h	CW	160-6m	Straight Key Century Club	in 2600 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 2600 daysin 2607 daysin 2614 daysin 2621 daysin 2628 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 2600 daysin 2607 daysin 2614 daysin 2621 daysin 2628 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 2600 daysin 2607 daysin 2614 daysin 2621 daysin 2628 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 2601 daysin 2603 daysin 2608 daysin 2610 daysin 2615 daysin 2617 daysin 2622 daysin 2624 daysin 2629 days
ARRL 160-Meter Contest	Fri 2 Dec	2200Z	1559Z Sun 4 Dec	41h 59m	CW	160m	ARRL	in 2601 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 2601 daysin 2602 days
International FT Challenge	Sat 3 Dec	1800Z	2359Z Sun 4 Dec	29h 59m	FT8/FT4FT4, FT8	80-10m	International FT Challenge	in 2602 days
FT Roundup	Sat 3 Dec	1800Z	2359Z Sun 4 Dec	29h 59m	FT8/FT4FT4, FT8	80-10m	RTTY Contesting	in 2602 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 2604 daysin 2611 daysin 2618 daysin 2625 days
ARS Spartan Sprint	Tue 6 Dec	0100Z	0300Z	2h	CW	80-10m	Adventure Radio Society	in 2604 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 2606 daysin 2613 daysin 2620 daysin 2627 days
VHF-UHF FT8 Activity: 144 MHz unverified	Wed 7 Dec	1700Z	2100Z	4h	FT8/FT4	2m	QSO BANAT Association (YO2KQT)	in 2606 days
ARRL 10-Meter Contest	Sat 10 Dec	0000Z	2359Z Sun 11 Dec	47h 59m	CWSSB	10m	ARRL	in 2608 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 2608 days
TRC DIGI Contest	Sat 10 Dec	0600Z	1800Z Sun 11 Dec	36h	RTTY	160-10m	Thracian Rose Club	in 2608 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 2608 daysin 2609 days
SKCC Weekend Sprintathon (WES)	Sat 10 Dec	1200Z	2359Z Sun 11 Dec	35h 59m	CW	160-6m	Straight Key Century Club	in 2609 days
ARI 40/80 Contest can't enter	Sat 10 Dec	1300Z	1259Z Sun 11 Dec	23h 59m	CWSSBRTTY	80m/40m	ARI	in 2609 days
4 States QRP Group Second Sunday Sprint (SSS)	Mon 12 Dec	0100Z	0300Z	2h	CWSSBDigital	160-10m	4 States QRP Group	in 2610 days
DARC CW-Ausbildungscontest unverified	Tue 13 Dec	1800Z	1859Z	59m	CW	not recorded	DARC	in 2612 days
VHF-UHF FT8 Activity: 432 MHz unverified	Wed 14 Dec	1700Z	2100Z	4h	FT8/FT4	70cm	QSO BANAT Association (YO2KQT)	in 2613 days
AGB-Party unverified	Fri 16 Dec	1600Z	1700Z	1h	CWSSBDigitalFT8, FT4	80m/40m	AGB	in 2615 days
OK DX RTTY Contest	Sat 17 Dec	0000Z	0000Z Sun 18 Dec	24h	RTTYBaudot	80-10m	CRK	in 2615 days
Croatian DX Contest (9A DX)	Sat 17 Dec	1400Z	1359Z Sun 18 Dec	23h 59m	CWSSB	160-10m	HRS	in 2616 days
ÖVSV VHF/UHF/Microwave Activity Contest	Sun 18 Dec	0700Z	1300Z	6h	CWSSBAMFM	6-3cm	ÖVSV	in 2616 days
ARRL Rookie Roundup, CW	Sun 18 Dec	1800Z	2359Z	5h 59m	CW	80-10m	ARRL	in 2617 days
VHF-UHF FT8 Activity: 1296 MHz unverified	Wed 21 Dec	1700Z	2100Z	4h	DigitalFT8	23cm	QSO BANAT Association (YO2KQT)	in 2620 days
DARC Weihnachtswettbewerb (XMAS Contest)	Mon 26 Dec	0830Z	1059Z	2h 29m	CWSSB	80m/40m	DARC	in 2624 days
SKCC Straight Key Sprint (SKS)	Wed 28 Dec	0000Z	0200Z	2h	CW	160-6m	Straight Key Century Club	in 2626 days

CWops Test (CWT)
CW · 160-6m · CWops
- 0300Z Thu 1 Dec → 0400Z · 1hin 2599 days
- 0700Z Thu 1 Dec → 0800Z · 1hin 2599 days
- 1300Z Wed 7 Dec → 1400Z · 1hin 2606 days
- 1900Z Wed 7 Dec → 2000Z · 1hin 2606 days
- 0300Z Thu 8 Dec → 0400Z · 1hin 2606 days
- 0700Z Thu 8 Dec → 0800Z · 1hin 2606 days
- 1300Z Wed 14 Dec → 1400Z · 1hin 2613 days
- 1900Z Wed 14 Dec → 2000Z · 1hin 2613 days
- 0300Z Thu 15 Dec → 0400Z · 1hin 2613 days
- 0700Z Thu 15 Dec → 0800Z · 1hin 2613 days
- 1300Z Wed 21 Dec → 1400Z · 1hin 2620 days
- 1900Z Wed 21 Dec → 2000Z · 1hin 2620 days
- 0300Z Thu 22 Dec → 0400Z · 1hin 2620 days
- 0700Z Thu 22 Dec → 0800Z · 1hin 2620 days
- 1300Z Wed 28 Dec → 1400Z · 1hin 2627 days
- 1900Z Wed 28 Dec → 2000Z · 1hin 2627 days
- 0300Z Thu 29 Dec → 0400Z · 1hin 2627 days
- 0700Z Thu 29 Dec → 0800Z · 1hin 2627 days
SKCC Straight Key Sprint Europe (SKSE)
CW · 160-6m · Straight Key Century Club
- 2000Z Thu 1 Dec → 2200Z · 2hin 2600 days
NCCC FT4 Sprint (FT4 NS)
FT8/FT4FT4 · 160-6m · Northern California Contest Club (NCCC)
- 0100Z Fri 2 Dec → 0130Z · 30min 2600 days
- 0100Z Fri 9 Dec → 0130Z · 30min 2607 days
- 0100Z Fri 16 Dec → 0130Z · 30min 2614 days
- 0100Z Fri 23 Dec → 0130Z · 30min 2621 days
- 0100Z Fri 30 Dec → 0130Z · 30min 2628 days
NCCC RTTY Sprint (RTTY NS)
RTTY · 160-15m · Northern California Contest Club (NCCC)
- 0145Z Fri 2 Dec → 0215Z · 30min 2600 days
- 0145Z Fri 9 Dec → 0215Z · 30min 2607 days
- 0145Z Fri 16 Dec → 0215Z · 30min 2614 days
- 0145Z Fri 23 Dec → 0215Z · 30min 2621 days
- 0145Z Fri 30 Dec → 0215Z · 30min 2628 days
NCCC Sprint (NS)
CW · 160-15m · Northern California Contest Club (NCCC)
- 0230Z Fri 2 Dec → 0300Z · 30min 2600 days
- 0230Z Fri 9 Dec → 0300Z · 30min 2607 days
- 0230Z Fri 16 Dec → 0300Z · 30min 2614 days
- 0230Z Fri 23 Dec → 0300Z · 30min 2621 days
- 0230Z Fri 30 Dec → 0300Z · 30min 2628 days
K1USN Slow Speed Test (SST)
CW · 160-10m · K1USN Radio Club
- 2000Z Fri 2 Dec → 2100Z · 1hin 2601 days
- 0000Z Mon 5 Dec → 0100Z · 1hin 2603 days
- 2000Z Fri 9 Dec → 2100Z · 1hin 2608 days
- 0000Z Mon 12 Dec → 0100Z · 1hin 2610 days
- 2000Z Fri 16 Dec → 2100Z · 1hin 2615 days
- 0000Z Mon 19 Dec → 0100Z · 1hin 2617 days
- 2000Z Fri 23 Dec → 2100Z · 1hin 2622 days
- 0000Z Mon 26 Dec → 0100Z · 1hin 2624 days
- 2000Z Fri 30 Dec → 2100Z · 1hin 2629 days
ARRL 160-Meter Contest
CW · 160m · ARRL
- 2200Z Fri 2 Dec → 1559Z Sun 4 Dec · 41h 59min 2601 days
USKA Weihnachtswettbewerb (SSB / Digital) can't enter
SSBRTTYDigitalFT8/FT4PSK31, PSK63 · 80m/40m · USKA
- 0700Z Sat 3 Dec → 0959Z · 2h 59min 2601 days
- 1000Z Sat 3 Dec → 1059Z · 59min 2602 days
International FT Challenge
FT8/FT4FT4, FT8 · 80-10m · International FT Challenge
- 1800Z Sat 3 Dec → 2359Z Sun 4 Dec · 29h 59min 2602 days
FT Roundup
FT8/FT4FT4, FT8 · 80-10m · RTTY Contesting
- 1800Z Sat 3 Dec → 2359Z Sun 4 Dec · 29h 59min 2602 days
AGCW ZAP Merit Contest (ZMC) unverified
CW · 80m · AGCW-DL
- 1740Z Mon 5 Dec → 1830Z · 50min 2604 days
- 1740Z Mon 12 Dec → 1830Z · 50min 2611 days
- 1740Z Mon 19 Dec → 1830Z · 50min 2618 days
- 1740Z Mon 26 Dec → 1830Z · 50min 2625 days
ARS Spartan Sprint
CW · 80-10m · Adventure Radio Society
- 0100Z Tue 6 Dec → 0300Z · 2hin 2604 days
A1Club Weekly Test (AWT)
CW · A1 Club
- 1145Z Wed 7 Dec → 1300Z · 1h 15min 2606 days
- 1145Z Wed 14 Dec → 1300Z · 1h 15min 2613 days
- 1145Z Wed 21 Dec → 1300Z · 1h 15min 2620 days
- 1145Z Wed 28 Dec → 1300Z · 1h 15min 2627 days
VHF-UHF FT8 Activity: 144 MHz unverified
FT8/FT4 · 2m · QSO BANAT Association (YO2KQT)
- 1700Z Wed 7 Dec → 2100Z · 4hin 2606 days
ARRL 10-Meter Contest
CWSSB · 10m · ARRL
- 0000Z Sat 10 Dec → 2359Z Sun 11 Dec · 47h 59min 2608 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 2608 days
TRC DIGI Contest
RTTY · 160-10m · Thracian Rose Club
- 0600Z Sat 10 Dec → 1800Z Sun 11 Dec · 36hin 2608 days
USKA Weihnachtswettbewerb (CW / Digital) can't enter
CWRTTYDigitalFT8/FT4PSK31, PSK63 · 80m/40m · USKA
- 0700Z Sat 10 Dec → 0959Z · 2h 59min 2608 days
- 1000Z Sat 10 Dec → 1059Z · 59min 2609 days
SKCC Weekend Sprintathon (WES)
CW · 160-6m · Straight Key Century Club
- 1200Z Sat 10 Dec → 2359Z Sun 11 Dec · 35h 59min 2609 days
ARI 40/80 Contest can't enter
CWSSBRTTY · 80m/40m · ARI
- 1300Z Sat 10 Dec → 1259Z Sun 11 Dec · 23h 59min 2609 days
4 States QRP Group Second Sunday Sprint (SSS)
CWSSBDigital · 160-10m · 4 States QRP Group
- 0100Z Mon 12 Dec → 0300Z · 2hin 2610 days
DARC CW-Ausbildungscontest unverified
CW · DARC
- 1800Z Tue 13 Dec → 1859Z · 59min 2612 days
VHF-UHF FT8 Activity: 432 MHz unverified
FT8/FT4 · 70cm · QSO BANAT Association (YO2KQT)
- 1700Z Wed 14 Dec → 2100Z · 4hin 2613 days
AGB-Party unverified
CWSSBDigitalFT8, FT4 · 80m/40m · AGB
- 1600Z Fri 16 Dec → 1700Z · 1hin 2615 days
OK DX RTTY Contest
RTTYBaudot · 80-10m · CRK
- 0000Z Sat 17 Dec → 0000Z Sun 18 Dec · 24hin 2615 days
Croatian DX Contest (9A DX)
CWSSB · 160-10m · HRS
- 1400Z Sat 17 Dec → 1359Z Sun 18 Dec · 23h 59min 2616 days
ÖVSV VHF/UHF/Microwave Activity Contest
CWSSBAMFM · 6-3cm · ÖVSV
- 0700Z Sun 18 Dec → 1300Z · 6hin 2616 days
ARRL Rookie Roundup, CW
CW · 80-10m · ARRL
- 1800Z Sun 18 Dec → 2359Z · 5h 59min 2617 days
VHF-UHF FT8 Activity: 1296 MHz unverified
DigitalFT8 · 23cm · QSO BANAT Association (YO2KQT)
- 1700Z Wed 21 Dec → 2100Z · 4hin 2620 days
DARC Weihnachtswettbewerb (XMAS Contest)
CWSSB · 80m/40m · DARC
- 0830Z Mon 26 Dec → 1059Z · 2h 29min 2624 days
SKCC Straight Key Sprint (SKS)
CW · 160-6m · Straight Key Century Club
- 0000Z Wed 28 Dec → 0200Z · 2hin 2626 days

December 2033

Every session in December 203331

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