Every Day Counts
Hexagonal Days
 
Age: 19,941 days
Date of birth
Your 83rd Hexagonal Day is on
Friday
when you will be
20,419 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
12 Sep 2024
19,991
50
54
21 Sep 2024
20,000
59
54
30 Dec 2024
20,100
159
55
07 Feb 2025
20,139
198
55
04 Mar 2025
20,164
223
55
14 Nov 2025
20,419
478
55
08 Mar 2026
20,533
592
56
25 Jan 2030
21,952
2,011
60
22 Oct 2030
22,222
2,281
60
05 May 2033
23,148
3,207
63
02 Apr 2036
24,211
4,270
66
04 Jun 2048
28,657
8,716
78
06 Sep 2059
32,768
12,827
89
10 Sep 2118
54,321
34,380
148
Ordinal
Day Age
Date
Age
82nd
19,927
10 Jul 2024
54
83rd
20,419
14 Nov 2025
55
1
84th
20,917
27 Mar 2027
57
85th
21,421
12 Aug 2028
58
86th
21,931
04 Jan 2030
60
87th
22,447
04 Jun 2031
61
88th
22,969
07 Nov 2032
62
89th
23,497
19 Apr 2034
64
90th
24,031
05 Oct 2035
65
91st
24,571
28 Mar 2037
67
92nd
25,117
25 Sep 2038
68
93rd
25,669
30 Mar 2040
70
94th
26,227
09 Oct 2041
71
95th
26,791
26 Apr 2043
73
96th
27,361
16 Nov 2044
74
97th
27,937
15 Jun 2046
76
98th
28,519
18 Jan 2048
78
99th
29,107
28 Aug 2049
79
100th
29,701
14 Apr 2051
81
101st
30,301
04 Dec 2052
82