Every Day Counts
Hexagonal Days
 
Age: 12,482 days
Date of birth
Your 66th Hexagonal Day is on
Monday
when you will be
12,871 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 May 2018
12,500
18
34
28 May 2018
12,521
39
34
20 Jun 2018
12,544
62
34
07 Jul 2018
12,561
79
34
13 May 2019
12,871
389
35
23 Aug 2019
12,973
491
35
19 Sep 2019
13,000
518
35
21 Dec 2021
13,824
1,342
37
02 Apr 2026
15,387
2,905
42
24 Dec 2028
16,384
3,902
44
12 Aug 2032
17,711
5,229
48
18 Dec 2044
22,222
9,740
60
02 Jul 2047
23,148
10,666
63
06 Nov 2132
54,321
41,839
148
Ordinal
Day Age
Date
Age
65th
12,481
18 Apr 2018
34
66th
12,871
13 May 2019
35
1
67th
13,267
12 Jun 2020
36
68th
13,669
19 Jul 2021
37
69th
14,077
31 Aug 2022
38
70th
14,491
19 Oct 2023
39
71st
14,911
12 Dec 2024
40
72nd
15,337
11 Feb 2026
41
73rd
15,769
19 Apr 2027
43
74th
16,207
30 Jun 2028
44
75th
16,651
17 Sep 2029
45
76th
17,101
11 Dec 2030
46
77th
17,557
11 Mar 2032
48
78th
18,019
16 Jun 2033
49
79th
18,487
27 Sep 2034
50
80th
18,961
14 Jan 2036
51
81st
19,441
08 May 2037
53
82nd
19,927
06 Sep 2038
54
83rd
20,419
11 Jan 2040
55
84th
20,917
23 May 2041
57