Every Day Counts
Hexagonal Days
 
Age: 15,256 days
Date of birth
Your 72nd Hexagonal Day is on
Monday
when you will be
15,337 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 Apr 2024
15,278
22
41
12 May 2024
15,301
45
41
17 Jun 2024
15,337
81
41
01 Jul 2024
15,351
95
42
26 Jul 2024
15,376
120
42
06 Aug 2024
15,387
131
42
19 Aug 2024
15,400
144
42
01 Apr 2025
15,625
369
42
11 Apr 2026
16,000
744
43
30 Apr 2027
16,384
1,128
44
17 Dec 2030
17,711
2,455
48
24 Apr 2043
22,222
6,966
60
05 Nov 2045
23,148
7,892
63
13 Mar 2131
54,321
39,065
148
Ordinal
Day Age
Date
Age
71st
14,911
18 Apr 2023
40
72nd
15,337
17 Jun 2024
41
1
73rd
15,769
23 Aug 2025
43
74th
16,207
04 Nov 2026
44
75th
16,651
22 Jan 2028
45
76th
17,101
16 Apr 2029
46
77th
17,557
16 Jul 2030
48
78th
18,019
21 Oct 2031
49
79th
18,487
31 Jan 2033
50
80th
18,961
20 May 2034
51
81st
19,441
12 Sep 2035
53
82nd
19,927
10 Jan 2037
54
83rd
20,419
17 May 2038
55
84th
20,917
27 Sep 2039
57
85th
21,421
12 Feb 2041
58
86th
21,931
07 Jul 2042
60
87th
22,447
05 Dec 2043
61
88th
22,969
10 May 2045
62
89th
23,497
20 Oct 2046
64
90th
24,031
06 Apr 2048
65