Every Day Counts
Hexagonal Days
 
Age: 10,265 days
Date of birth
Your 59th Hexagonal Day is on
Monday
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
22 Jan 2018
10,267
2
28
20 Feb 2018
10,296
31
28
25 Feb 2018
10,301
36
28
29 Mar 2018
10,333
68
28
08 Jun 2018
10,404
139
28
21 Jun 2018
10,417
152
28
07 Feb 2019
10,648
383
29
02 Dec 2019
10,946
681
29
25 Jan 2020
11,000
735
30
15 May 2020
11,111
846
30
21 Aug 2021
11,574
1,309
31
01 Oct 2023
12,345
2,080
33
29 Jan 2032
15,387
5,122
42
22 Oct 2034
16,384
6,119
44
Ordinal
Day Age
Date
Age
58th
9,919
08 Feb 2017
27
59th
10,267
22 Jan 2018
28
1
60th
10,621
11 Jan 2019
29
61st
10,981
06 Jan 2020
30
62nd
11,347
06 Jan 2021
31
63rd
11,719
13 Jan 2022
32
64th
12,097
26 Jan 2023
33
65th
12,481
14 Feb 2024
34
66th
12,871
10 Mar 2025
35
67th
13,267
10 Apr 2026
36
68th
13,669
17 May 2027
37
69th
14,077
28 Jun 2028
38
70th
14,491
16 Aug 2029
39
71st
14,911
10 Oct 2030
40
72nd
15,337
10 Dec 2031
41
73rd
15,769
14 Feb 2033
43
74th
16,207
28 Apr 2034
44
75th
16,651
16 Jul 2035
45
76th
17,101
08 Oct 2036
46
77th
17,557
07 Jan 2038
48