Every Day Counts
Hexagonal Days
 
Age: 20,906 days
Date of birth
Your 84th Hexagonal Day is on
Saturday
when you will be
20,917 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
05 Jul 2025
20,910
4
57
12 Jul 2025
20,917
11
57
03 Oct 2025
21,000
94
57
15 Oct 2025
21,012
106
57
28 Oct 2025
21,025
119
57
01 Jun 2026
21,241
335
58
15 Mar 2027
21,528
622
58
12 May 2028
21,952
1,046
60
06 Feb 2029
22,222
1,316
60
21 Aug 2031
23,148
2,242
63
19 Jul 2034
24,211
3,305
66
20 Sep 2046
28,657
7,751
78
22 Dec 2057
32,768
11,862
89
26 Dec 2116
54,321
33,415
148
Ordinal
Day Age
Date
Age
83rd
20,419
01 Mar 2024
55
84th
20,917
12 Jul 2025
57
1
85th
21,421
28 Nov 2026
58
86th
21,931
21 Apr 2028
60
87th
22,447
19 Sep 2029
61
88th
22,969
23 Feb 2031
62
89th
23,497
04 Aug 2032
64
90th
24,031
20 Jan 2034
65
91st
24,571
14 Jul 2035
67
92nd
25,117
10 Jan 2037
68
93rd
25,669
16 Jul 2038
70
94th
26,227
25 Jan 2040
71
95th
26,791
11 Aug 2041
73
96th
27,361
04 Mar 2043
74
97th
27,937
30 Sep 2044
76
98th
28,519
05 May 2046
78
99th
29,107
14 Dec 2047
79
100th
29,701
30 Jul 2049
81
101st
30,301
22 Mar 2051
82
102nd
30,907
17 Nov 2052
84