Every Day Counts
Hexagonal Days
 
Age: 17,222 days
Date of birth
Your 77th Hexagonal Day is on
Thursday
when you will be
17,557 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
17 May 2024
17,271
49
47
15 Aug 2024
17,361
139
47
14 Sep 2024
17,391
169
47
17 Oct 2024
17,424
202
47
27 Feb 2025
17,557
335
48
18 Mar 2025
17,576
354
48
31 Jul 2025
17,711
489
48
18 Nov 2025
17,821
599
48
16 May 2026
18,000
778
49
06 Dec 2037
22,222
5,000
60
19 Jun 2040
23,148
5,926
63
18 May 2043
24,211
6,989
66
21 Oct 2066
32,768
15,546
89
25 Oct 2125
54,321
37,099
148
Ordinal
Day Age
Date
Age
76th
17,101
29 Nov 2023
46
77th
17,557
27 Feb 2025
48
1
78th
18,019
04 Jun 2026
49
79th
18,487
15 Sep 2027
50
80th
18,961
01 Jan 2029
51
81st
19,441
26 Apr 2030
53
82nd
19,927
25 Aug 2031
54
83rd
20,419
29 Dec 2032
55
84th
20,917
11 May 2034
57
85th
21,421
27 Sep 2035
58
86th
21,931
18 Feb 2037
60
87th
22,447
19 Jul 2038
61
88th
22,969
23 Dec 2039
62
89th
23,497
03 Jun 2041
64
90th
24,031
19 Nov 2042
65
91st
24,571
12 May 2044
67
92nd
25,117
09 Nov 2045
68
93rd
25,669
15 May 2047
70
94th
26,227
23 Nov 2048
71
95th
26,791
10 Jun 2050
73