All Calendar Weeks (CW) in 1666

Hey, are you looking for the current calendar week or all calendar weeks in 2026?

The year 1666 has 52 calendar weeks. 1666 begins on 01/01/1666 and ends on 31/12/1666. The first calendar week in 1666 begins on Monday, the 04/01/1666 and ends on Sunday, the 10/01/1666. The last calendar week in 1666 begins on Monday, the 27/12/1666 and ends on Sunday, the 02/01/1667.

Good to know: You can find pocket calendars with calendar week entry (CW) on Amazon. Our tip: Moleskine Large Weekly Notebook - one of the best pocket calendars with calendar week entry.

Download 1666 week numbers (.ics)

Week numbers in 1666

The following spreadsheet contains all calendar weeks in 1666. Quite handy, isn't it? Works great as a desktop calendar that includes CW. Just print it out for your office.

Show dates as:

Calendar including Calendar Weeks (CW) 1666
Calendar week	Year	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
CW 53	1665	28/12	29/12	30/12	31/12	01/01	02/01	03/01
CW 1	1666	04/01	05/01	06/01	07/01	08/01	09/01	10/01
CW 2	1666	11/01	12/01	13/01	14/01	15/01	16/01	17/01
CW 3	1666	18/01	19/01	20/01	21/01	22/01	23/01	24/01
CW 4	1666	25/01	26/01	27/01	28/01	29/01	30/01	31/01
CW 5	1666	01/02	02/02	03/02	04/02	05/02	06/02	07/02
CW 6	1666	08/02	09/02	10/02	11/02	12/02	13/02	14/02
CW 7	1666	15/02	16/02	17/02	18/02	19/02	20/02	21/02
CW 8	1666	22/02	23/02	24/02	25/02	26/02	27/02	28/02
CW 9	1666	01/03	02/03	03/03	04/03	05/03	06/03	07/03
CW 10	1666	08/03	09/03	10/03	11/03	12/03	13/03	14/03
CW 11	1666	15/03	16/03	17/03	18/03	19/03	20/03	21/03
CW 12	1666	22/03	23/03	24/03	25/03	26/03	27/03	28/03
CW 13	1666	29/03	30/03	31/03	01/04	02/04	03/04	04/04
CW 14	1666	05/04	06/04	07/04	08/04	09/04	10/04	11/04
CW 15	1666	12/04	13/04	14/04	15/04	16/04	17/04	18/04
CW 16	1666	19/04	20/04	21/04	22/04	23/04	24/04	25/04
CW 17	1666	26/04	27/04	28/04	29/04	30/04	01/05	02/05
CW 18	1666	03/05	04/05	05/05	06/05	07/05	08/05	09/05
CW 19	1666	10/05	11/05	12/05	13/05	14/05	15/05	16/05
CW 20	1666	17/05	18/05	19/05	20/05	21/05	22/05	23/05
CW 21	1666	24/05	25/05	26/05	27/05	28/05	29/05	30/05
CW 22	1666	31/05	01/06	02/06	03/06	04/06	05/06	06/06
CW 23	1666	07/06	08/06	09/06	10/06	11/06	12/06	13/06
CW 24	1666	14/06	15/06	16/06	17/06	18/06	19/06	20/06
CW 25	1666	21/06	22/06	23/06	24/06	25/06	26/06	27/06
CW 26	1666	28/06	29/06	30/06	01/07	02/07	03/07	04/07
CW 27	1666	05/07	06/07	07/07	08/07	09/07	10/07	11/07
CW 28	1666	12/07	13/07	14/07	15/07	16/07	17/07	18/07
CW 29	1666	19/07	20/07	21/07	22/07	23/07	24/07	25/07
CW 30	1666	26/07	27/07	28/07	29/07	30/07	31/07	01/08
CW 31	1666	02/08	03/08	04/08	05/08	06/08	07/08	08/08
CW 32	1666	09/08	10/08	11/08	12/08	13/08	14/08	15/08
CW 33	1666	16/08	17/08	18/08	19/08	20/08	21/08	22/08
CW 34	1666	23/08	24/08	25/08	26/08	27/08	28/08	29/08
CW 35	1666	30/08	31/08	01/09	02/09	03/09	04/09	05/09
CW 36	1666	06/09	07/09	08/09	09/09	10/09	11/09	12/09
CW 37	1666	13/09	14/09	15/09	16/09	17/09	18/09	19/09
CW 38	1666	20/09	21/09	22/09	23/09	24/09	25/09	26/09
CW 39	1666	27/09	28/09	29/09	30/09	01/10	02/10	03/10
CW 40	1666	04/10	05/10	06/10	07/10	08/10	09/10	10/10
CW 41	1666	11/10	12/10	13/10	14/10	15/10	16/10	17/10
CW 42	1666	18/10	19/10	20/10	21/10	22/10	23/10	24/10
CW 43	1666	25/10	26/10	27/10	28/10	29/10	30/10	31/10
CW 44	1666	01/11	02/11	03/11	04/11	05/11	06/11	07/11
CW 45	1666	08/11	09/11	10/11	11/11	12/11	13/11	14/11
CW 46	1666	15/11	16/11	17/11	18/11	19/11	20/11	21/11
CW 47	1666	22/11	23/11	24/11	25/11	26/11	27/11	28/11
CW 48	1666	29/11	30/11	01/12	02/12	03/12	04/12	05/12
CW 49	1666	06/12	07/12	08/12	09/12	10/12	11/12	12/12
CW 50	1666	13/12	14/12	15/12	16/12	17/12	18/12	19/12
CW 51	1666	20/12	21/12	22/12	23/12	24/12	25/12	26/12
CW 52	1666	27/12	28/12	29/12	30/12	31/12	01/01	02/01