Every Day Counts
Hexagonal Days
 
Age: 16,023 days
Date of birth
Your 74th Hexagonal Day is on
Sunday
when you will be
16,207 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
25 Aug 2025
16,061
38
43
13 Oct 2025
16,110
87
44
01 Nov 2025
16,129
106
44
18 Jan 2026
16,207
184
44
14 Jul 2026
16,384
361
44
14 Dec 2026
16,537
514
45
23 Apr 2027
16,667
644
45
21 Mar 2028
17,000
977
46
18 Oct 2029
17,576
1,553
48
02 Mar 2030
17,711
1,688
48
08 Jul 2042
22,222
6,199
60
19 Jan 2045
23,148
7,125
63
18 Dec 2047
24,211
8,188
66
27 May 2130
54,321
38,298
148
Ordinal
Day Age
Date
Age
73rd
15,769
06 Nov 2024
43
74th
16,207
18 Jan 2026
44
1
75th
16,651
07 Apr 2027
45
76th
17,101
30 Jun 2028
46
77th
17,557
29 Sep 2029
48
78th
18,019
04 Jan 2031
49
79th
18,487
16 Apr 2032
50
80th
18,961
03 Aug 2033
51
81st
19,441
26 Nov 2034
53
82nd
19,927
26 Mar 2036
54
83rd
20,419
31 Jul 2037
55
84th
20,917
11 Dec 2038
57
85th
21,421
28 Apr 2040
58
86th
21,931
20 Sep 2041
60
87th
22,447
18 Feb 2043
61
88th
22,969
24 Jul 2044
62
89th
23,497
03 Jan 2046
64
90th
24,031
21 Jun 2047
65
91st
24,571
12 Dec 2048
67
92nd
25,117
11 Jun 2050
68