Every Day Counts
Hexagonal Days
 
Age: 18,250 days
Date of birth
Your 79th Hexagonal Day is on
Wednesday
when you will be
18,487 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
28 Apr 2024
18,281
31
50
22 Jun 2024
18,336
86
50
14 Nov 2024
18,481
231
50
20 Nov 2024
18,487
237
50
29 Nov 2024
18,496
246
50
10 Aug 2025
18,750
500
51
17 Apr 2026
19,000
750
52
29 Feb 2028
19,683
1,433
53
11 Feb 2035
22,222
3,972
60
25 Aug 2037
23,148
4,898
63
23 Jul 2040
24,211
5,961
66
24 Sep 2052
28,657
10,407
78
27 Dec 2063
32,768
14,518
89
31 Dec 2122
54,321
36,071
148
Ordinal
Day Age
Date
Age
78th
18,019
10 Aug 2023
49
79th
18,487
20 Nov 2024
50
1
80th
18,961
09 Mar 2026
51
81st
19,441
02 Jul 2027
53
82nd
19,927
30 Oct 2028
54
83rd
20,419
06 Mar 2030
55
84th
20,917
17 Jul 2031
57
85th
21,421
02 Dec 2032
58
86th
21,931
26 Apr 2034
60
87th
22,447
24 Sep 2035
61
88th
22,969
27 Feb 2037
62
89th
23,497
09 Aug 2038
64
90th
24,031
25 Jan 2040
65
91st
24,571
18 Jul 2041
67
92nd
25,117
15 Jan 2043
68
93rd
25,669
20 Jul 2044
70
94th
26,227
29 Jan 2046
71
95th
26,791
16 Aug 2047
73
96th
27,361
08 Mar 2049
74
97th
27,937
05 Oct 2050
76