Every Day Counts
Hexagonal Days
 
Age: 23,521 days
Date of birth
Your 90th Hexagonal Day is on
Thursday
when you will be
24,031 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
09 Apr 2024
23,532
11
64
27 Jun 2024
23,611
90
64
08 Aug 2024
23,653
132
64
10 Oct 2024
23,716
195
64
21 Jul 2025
24,000
479
65
21 Aug 2025
24,031
510
65
30 Jan 2026
24,193
672
66
17 Feb 2026
24,211
690
66
14 Aug 2026
24,389
868
66
21 Apr 2038
28,657
5,136
78
23 Jul 2049
32,768
9,247
89
08 Feb 2051
33,333
9,812
91
28 Nov 2054
34,722
11,201
95
27 Jul 2108
54,321
30,800
148
Ordinal
Day Age
Date
Age
89th
23,497
05 Mar 2024
64
90th
24,031
21 Aug 2025
65
1
91st
24,571
12 Feb 2027
67
92nd
25,117
11 Aug 2028
68
93rd
25,669
14 Feb 2030
70
94th
26,227
26 Aug 2031
71
95th
26,791
12 Mar 2033
73
96th
27,361
03 Oct 2034
74
97th
27,937
01 May 2036
76
98th
28,519
04 Dec 2037
78
99th
29,107
15 Jul 2039
79
100th
29,701
28 Feb 2041
81
101st
30,301
21 Oct 2042
82
102nd
30,907
18 Jun 2044
84
103rd
31,519
20 Feb 2046
86
104th
32,137
31 Oct 2047
87
105th
32,761
16 Jul 2049
89
106th
33,391
07 Apr 2051
91
107th
34,027
02 Jan 2053
93
108th
34,669
06 Oct 2054
94