Every Day Counts
Hexagonal Days
 
Age: 14,908 days
Date of birth
Your 71st Hexagonal Day is on
Tuesday
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
07 Dec 2021
14,911
3
40
06 Jan 2022
14,941
33
40
06 Mar 2022
15,000
92
41
26 Apr 2022
15,051
143
41
13 Jul 2022
15,129
221
41
09 Dec 2022
15,278
370
41
01 Jan 2023
15,301
393
41
28 Mar 2023
15,387
479
42
21 Nov 2023
15,625
717
42
19 Dec 2025
16,384
1,476
44
07 Aug 2029
17,711
2,803
48
13 Dec 2041
22,222
7,314
60
26 Jun 2044
23,148
8,240
63
01 Nov 2129
54,321
39,413
148
Ordinal
Day Age
Date
Age
70th
14,491
13 Oct 2020
39
71st
14,911
07 Dec 2021
40
1
72nd
15,337
06 Feb 2023
41
73rd
15,769
13 Apr 2024
43
74th
16,207
25 Jun 2025
44
75th
16,651
12 Sep 2026
45
76th
17,101
06 Dec 2027
46
77th
17,557
06 Mar 2029
48
78th
18,019
11 Jun 2030
49
79th
18,487
22 Sep 2031
50
80th
18,961
08 Jan 2033
51
81st
19,441
03 May 2034
53
82nd
19,927
01 Sep 2035
54
83rd
20,419
05 Jan 2037
55
84th
20,917
18 May 2038
57
85th
21,421
04 Oct 2039
58
86th
21,931
25 Feb 2041
60
87th
22,447
26 Jul 2042
61
88th
22,969
30 Dec 2043
62
89th
23,497
10 Jun 2045
64