Every Day Counts
Hexagonal Days
 
Age: 14,501 days
Date of birth
Your 71st Hexagonal Day is on
Wednesday
when you will be
14,911 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
04 Dec 2020
14,535
34
39
10 Dec 2020
14,541
40
39
21 Jan 2021
14,583
82
39
20 Mar 2021
14,641
140
40
19 May 2021
14,701
200
40
15 Dec 2021
14,911
410
40
14 Mar 2022
15,000
499
41
05 Apr 2023
15,387
886
42
29 Nov 2023
15,625
1,124
42
27 Dec 2025
16,384
1,883
44
15 Aug 2029
17,711
3,210
48
21 Dec 2041
22,222
7,721
60
04 Jul 2044
23,148
8,647
63
09 Nov 2129
54,321
39,820
148
Ordinal
Day Age
Date
Age
70th
14,491
21 Oct 2020
39
71st
14,911
15 Dec 2021
40
1
72nd
15,337
14 Feb 2023
41
73rd
15,769
21 Apr 2024
43
74th
16,207
03 Jul 2025
44
75th
16,651
20 Sep 2026
45
76th
17,101
14 Dec 2027
46
77th
17,557
14 Mar 2029
48
78th
18,019
19 Jun 2030
49
79th
18,487
30 Sep 2031
50
80th
18,961
16 Jan 2033
51
81st
19,441
11 May 2034
53
82nd
19,927
09 Sep 2035
54
83rd
20,419
13 Jan 2037
55
84th
20,917
26 May 2038
57
85th
21,421
12 Oct 2039
58
86th
21,931
05 Mar 2041
60
87th
22,447
03 Aug 2042
61
88th
22,969
07 Jan 2044
62
89th
23,497
18 Jun 2045
64