Every Day Counts
Hexagonal Days
 
Age: 10,626 days
Date of birth
Your 61st Hexagonal Day is on
Sunday
when you will be
10,981 days old

Hexagonal Days occur when your day age is a centred hexagonal number.

A centred hexagonal number, or hex number, is a centred figurate number that represents a hexagon with a dot in the centre and all other dots surrounding the centre dot in a hexagonal lattice.

Strictly, a hexagonal number is the number of distinct dots in a pattern of dots consisting of the outlines of regular hexagons with sides up to n dots, when the hexagons are overlaid so that they share one vertex.

We choose to use centred hexagonal numbers to calculate our Hexagonal Days because all (outlined) hexagonal numbers are also triangular numbers and these are already commemorated in our Triangular Days.

Centred Hexagonal
1
7
19
37
61
91
Hexagonal
1
6
15
28
45
66
91
Triangular
1
3
6
10
15
21
28
36
45
55
66
78
91

Remind me, please


Next Main Events
Day Age
Event
Days Ahead
Year Age
17 Feb 2021
10,648
22
29
11 Apr 2021
10,701
75
29
11 May 2021
10,731
105
29
04 Aug 2021
10,816
190
29
25 Aug 2021
10,837
211
29
12 Dec 2021
10,946
320
29
16 Jan 2022
10,981
355
30
04 Feb 2022
11,000
374
30
26 May 2022
11,111
485
30
26 May 2022
11,111
485
30
01 Sep 2023
11,574
948
31
11 Oct 2025
12,345
1,719
33
08 Feb 2034
15,387
4,761
42
01 Nov 2036
16,384
5,758
44
Ordinal
Day Age
Date
Age
60th
10,621
21 Jan 2021
29
61st
10,981
16 Jan 2022
30
1
62nd
11,347
17 Jan 2023
31
63rd
11,719
24 Jan 2024
32
64th
12,097
05 Feb 2025
33
65th
12,481
24 Feb 2026
34
66th
12,871
21 Mar 2027
35
67th
13,267
20 Apr 2028
36
68th
13,669
27 May 2029
37
69th
14,077
09 Jul 2030
38
70th
14,491
27 Aug 2031
39
71st
14,911
20 Oct 2032
40
72nd
15,337
20 Dec 2033
41
73rd
15,769
25 Feb 2035
43
74th
16,207
08 May 2036
44
75th
16,651
26 Jul 2037
45
76th
17,101
19 Oct 2038
46
77th
17,557
18 Jan 2040
48
78th
18,019
24 Apr 2041
49
79th
18,487
05 Aug 2042
50