Every Day Counts
Hexagonal Days
 
Age: 10,194 days
Date of birth
Your 59th Hexagonal Day is on
Saturday
when you will be
10,267 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
31 Oct 2018
10,201
7
27
31 Oct 2018
10,201
7
27
05 Jan 2019
10,267
73
28
03 Feb 2019
10,296
102
28
12 Mar 2019
10,333
139
28
04 Jun 2019
10,417
223
28
21 Jan 2020
10,648
454
29
14 Nov 2020
10,946
752
29
07 Jan 2021
11,000
806
30
28 Apr 2021
11,111
917
30
04 Aug 2022
11,574
1,380
31
13 Sep 2024
12,345
2,151
33
11 Jan 2033
15,387
5,193
42
05 Oct 2035
16,384
6,190
44
Ordinal
Day Age
Date
Age
58th
9,919
22 Jan 2018
27
59th
10,267
05 Jan 2019
28
1
60th
10,621
25 Dec 2019
29
61st
10,981
19 Dec 2020
30
62nd
11,347
20 Dec 2021
31
63rd
11,719
27 Dec 2022
32
64th
12,097
09 Jan 2024
33
65th
12,481
27 Jan 2025
34
66th
12,871
21 Feb 2026
35
67th
13,267
24 Mar 2027
36
68th
13,669
29 Apr 2028
37
69th
14,077
11 Jun 2029
38
70th
14,491
30 Jul 2030
39
71st
14,911
23 Sep 2031
40
72nd
15,337
22 Nov 2032
41
73rd
15,769
28 Jan 2034
43
74th
16,207
11 Apr 2035
44
75th
16,651
28 Jun 2036
45
76th
17,101
21 Sep 2037
46
77th
17,557
21 Dec 2038
48