Every Day Counts
Hexagonal Days
 
Age: 9,228 days
Date of birth
Your 56th Hexagonal Day is on
Wednesday
when you will be
9,241 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
20 Apr 2018
9,229
tomorrow
25
02 May 2018
9,241
13
25
22 May 2018
9,261
33
25
16 Jul 2018
9,316
88
25
30 Aug 2018
9,361
133
25
17 Oct 2018
9,409
181
25
26 Aug 2019
9,722
494
26
29 May 2020
9,999
771
27
30 May 2020
10,000
772
27
01 Jan 2023
10,946
1,718
29
20 Sep 2024
11,574
2,346
31
31 Oct 2026
12,345
3,117
33
28 Feb 2035
15,387
6,159
42
21 Nov 2037
16,384
7,156
44
Ordinal
Day Age
Date
Age
55th
8,911
06 Jun 2017
24
56th
9,241
02 May 2018
25
1
57th
9,577
03 Apr 2019
26
58th
9,919
10 Mar 2020
27
59th
10,267
21 Feb 2021
28
60th
10,621
10 Feb 2022
29
61st
10,981
05 Feb 2023
30
62nd
11,347
06 Feb 2024
31
63rd
11,719
12 Feb 2025
32
64th
12,097
25 Feb 2026
33
65th
12,481
16 Mar 2027
34
66th
12,871
09 Apr 2028
35
67th
13,267
10 May 2029
36
68th
13,669
16 Jun 2030
37
69th
14,077
29 Jul 2031
38
70th
14,491
15 Sep 2032
39
71st
14,911
09 Nov 2033
40
72nd
15,337
09 Jan 2035
41
73rd
15,769
16 Mar 2036
43
74th
16,207
28 May 2037
44