Every Day Counts
Hexagonal Days
 
Age: 19,292 days
Date of birth
Your 81st Hexagonal Day is on
Sunday
when you will be
19,441 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 Jul 2025
19,306
14
52
09 Aug 2025
19,321
29
52
18 Oct 2025
19,391
99
53
07 Dec 2025
19,441
149
53
10 Dec 2025
19,444
152
53
06 Aug 2026
19,683
391
53
07 Jan 2027
19,837
545
54
19 Jun 2027
20,000
708
54
19 Jul 2033
22,222
2,930
60
31 Jan 2036
23,148
3,856
63
29 Dec 2038
24,211
4,919
66
02 Mar 2051
28,657
9,365
78
03 Jun 2062
32,768
13,476
89
07 Jun 2121
54,321
35,029
148
Ordinal
Day Age
Date
Age
80th
18,961
14 Aug 2024
51
81st
19,441
07 Dec 2025
53
1
82nd
19,927
07 Apr 2027
54
83rd
20,419
11 Aug 2028
55
84th
20,917
22 Dec 2029
57
85th
21,421
10 May 2031
58
86th
21,931
01 Oct 2032
60
87th
22,447
01 Mar 2034
61
88th
22,969
05 Aug 2035
62
89th
23,497
14 Jan 2037
64
90th
24,031
02 Jul 2038
65
91st
24,571
24 Dec 2039
67
92nd
25,117
22 Jun 2041
68
93rd
25,669
26 Dec 2042
70
94th
26,227
06 Jul 2044
71
95th
26,791
21 Jan 2046
73
96th
27,361
14 Aug 2047
74
97th
27,937
12 Mar 2049
76
98th
28,519
15 Oct 2050
78
99th
29,107
25 May 2052
79