Every Day Counts
Hexagonal Days
 
Age: 13,048 days
Date of birth
Your 67th Hexagonal Day is on
Saturday
when you will be
13,267 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
19 Jun 2024
13,131
83
35
21 Aug 2024
13,194
146
36
30 Aug 2024
13,203
155
36
21 Sep 2024
13,225
177
36
02 Nov 2024
13,267
219
36
30 Jul 2025
13,537
489
37
13 May 2026
13,824
776
37
05 Nov 2026
14,000
952
38
23 Aug 2030
15,387
2,339
42
16 May 2033
16,384
3,336
44
02 Jan 2037
17,711
4,663
48
10 May 2049
22,222
9,174
60
22 Nov 2051
23,148
10,100
63
29 Mar 2137
54,321
41,273
148
Ordinal
Day Age
Date
Age
66th
12,871
03 Oct 2023
35
67th
13,267
02 Nov 2024
36
1
68th
13,669
09 Dec 2025
37
69th
14,077
21 Jan 2027
38
70th
14,491
10 Mar 2028
39
71st
14,911
04 May 2029
40
72nd
15,337
04 Jul 2030
41
73rd
15,769
09 Sep 2031
43
74th
16,207
20 Nov 2032
44
75th
16,651
07 Feb 2034
45
76th
17,101
03 May 2035
46
77th
17,557
01 Aug 2036
48
78th
18,019
06 Nov 2037
49
79th
18,487
17 Feb 2039
50
80th
18,961
05 Jun 2040
51
81st
19,441
28 Sep 2041
53
82nd
19,927
27 Jan 2043
54
83rd
20,419
02 Jun 2044
55
84th
20,917
13 Oct 2045
57
85th
21,421
01 Mar 2047
58