Every Day Counts
Hexagonal Days
 
Age: 13,443 days
Date of birth
Your 68th Hexagonal Day is on
Thursday
when you will be
13,669 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
30 Jul 2018
13,456
13
36
12 Oct 2018
13,530
87
37
13 Oct 2018
13,531
88
37
19 Oct 2018
13,537
94
37
28 Feb 2019
13,669
226
37
02 Aug 2019
13,824
381
37
06 Oct 2019
13,889
446
38
25 Jan 2020
14,000
557
38
12 Nov 2023
15,387
1,944
42
05 Aug 2026
16,384
2,941
44
24 Mar 2030
17,711
4,268
48
30 Jul 2042
22,222
8,779
60
10 Feb 2045
23,148
9,705
63
18 Jun 2130
54,321
40,878
148
Ordinal
Day Age
Date
Age
67th
13,267
22 Jan 2018
36
68th
13,669
28 Feb 2019
37
1
69th
14,077
11 Apr 2020
38
70th
14,491
30 May 2021
39
71st
14,911
24 Jul 2022
40
72nd
15,337
23 Sep 2023
41
73rd
15,769
28 Nov 2024
43
74th
16,207
09 Feb 2026
44
75th
16,651
29 Apr 2027
45
76th
17,101
22 Jul 2028
46
77th
17,557
21 Oct 2029
48
78th
18,019
26 Jan 2031
49
79th
18,487
08 May 2032
50
80th
18,961
25 Aug 2033
51
81st
19,441
18 Dec 2034
53
82nd
19,927
17 Apr 2036
54
83rd
20,419
22 Aug 2037
55
84th
20,917
02 Jan 2039
57
85th
21,421
20 May 2040
58
86th
21,931
12 Oct 2041
60