1866

Eighteen Sixty-Six

1866 was 158 years 11 months 3 weeks ago. There were 364 days in 1866 because this year was not a leap year. 1866 had 52 weeks. In the Chinese calendar, 1866 was the year of the tiger. 🐅

The Gregorian year 1866 corresponds to 1282 or 1283 in the Hijri calendar - also known as the Muslim calendar and Islamic calendar. In the Hebrew calendar, called HaLuah HaIvri, the Gregorian year 1866 corresponds to 5626 or 5627 depending on the time of year. ☪️ ✡️

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1866 in Roman Numerals is:

MDCCCLXVI

Roman numeral converter »

1866 Holiday Calendar

January
Su Mo Tu We Th Fr Sa
1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31
February
Su Mo Tu We Th Fr Sa
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28
March
Su Mo Tu We Th Fr Sa
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
April
Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30
May
Su Mo Tu We Th Fr Sa
1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31
June
Su Mo Tu We Th Fr Sa
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
July
Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31
August
Su Mo Tu We Th Fr Sa
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31
September
Su Mo Tu We Th Fr Sa
1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30
October
Su Mo Tu We Th Fr Sa
1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31
November
Su Mo Tu We Th Fr Sa
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30
December
Su Mo Tu We Th Fr Sa
1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31

1866 Week Numbers

This table assumes weeks start on Monday and end on Sunday. This is based on the ISO-8601 week date standard. In the US, Canada, and most of South America weeks normally start on Sunday.

« week numbers for 1865 | week numbers for 1867 »

Week Number Start Day End Day
Week 52, 1865 Dec 25, 1865 Dec 31, 1865
Week 1 Jan 1, 1866 Jan 7, 1866
Week 2 Jan 8, 1866 Jan 14, 1866
Week 3 Jan 15, 1866 Jan 21, 1866
Week 4 Jan 22, 1866 Jan 28, 1866
Week 5 Jan 29, 1866 Feb 4, 1866
Week 6 Feb 5, 1866 Feb 11, 1866
Week 7 Feb 12, 1866 Feb 18, 1866
Week 8 Feb 19, 1866 Feb 25, 1866
Week 9 Feb 26, 1866 Mar 4, 1866
Week 10 Mar 5, 1866 Mar 11, 1866
Week 11 Mar 12, 1866 Mar 18, 1866
Week 12 Mar 19, 1866 Mar 25, 1866
Week 13 Mar 26, 1866 Apr 1, 1866
Week 14 Apr 2, 1866 Apr 8, 1866
Week 15 Apr 9, 1866 Apr 15, 1866
Week 16 Apr 16, 1866 Apr 22, 1866
Week 17 Apr 23, 1866 Apr 29, 1866
Week 18 Apr 30, 1866 May 6, 1866
Week 19 May 7, 1866 May 13, 1866
Week 20 May 14, 1866 May 20, 1866
Week 21 May 21, 1866 May 27, 1866
Week 22 May 28, 1866 Jun 3, 1866
Week 23 Jun 4, 1866 Jun 10, 1866
Week 24 Jun 11, 1866 Jun 17, 1866
Week 25 Jun 18, 1866 Jun 24, 1866
Week 26 Jun 25, 1866 Jul 1, 1866
Week 27 Jul 2, 1866 Jul 8, 1866
Week 28 Jul 9, 1866 Jul 15, 1866
Week 29 Jul 16, 1866 Jul 22, 1866
Week 30 Jul 23, 1866 Jul 29, 1866
Week 31 Jul 30, 1866 Aug 5, 1866
Week 32 Aug 6, 1866 Aug 12, 1866
Week 33 Aug 13, 1866 Aug 19, 1866
Week 34 Aug 20, 1866 Aug 26, 1866
Week 35 Aug 27, 1866 Sep 2, 1866
Week 36 Sep 3, 1866 Sep 9, 1866
Week 37 Sep 10, 1866 Sep 16, 1866
Week 38 Sep 17, 1866 Sep 23, 1866
Week 39 Sep 24, 1866 Sep 30, 1866
Week 40 Oct 1, 1866 Oct 7, 1866
Week 41 Oct 8, 1866 Oct 14, 1866
Week 42 Oct 15, 1866 Oct 21, 1866
Week 43 Oct 22, 1866 Oct 28, 1866
Week 44 Oct 29, 1866 Nov 4, 1866
Week 45 Nov 5, 1866 Nov 11, 1866
Week 46 Nov 12, 1866 Nov 18, 1866
Week 47 Nov 19, 1866 Nov 25, 1866
Week 48 Nov 26, 1866 Dec 2, 1866
Week 49 Dec 3, 1866 Dec 9, 1866
Week 50 Dec 10, 1866 Dec 16, 1866
Week 51 Dec 17, 1866 Dec 23, 1866
Week 52 Dec 24, 1866 Dec 30, 1866
Week 1, 1866 Dec 31, 1866 Jan 6, 1867

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