Every Day Counts
Hexagonal Days
 
Age: 9,000 days
Date of birth
Your 56th Hexagonal Day is on
Monday
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
9,000
today
24
29 Apr 2018
9,009
9
24
15 May 2018
9,025
25
24
18 May 2018
9,028
28
24
04 Jun 2018
9,045
45
24
17 Dec 2018
9,241
241
25
06 Jan 2019
9,261
261
25
16 Apr 2019
9,361
361
25
13 Jan 2021
9,999
999
27
18 Aug 2023
10,946
1,946
29
07 May 2025
11,574
2,574
31
17 Jun 2027
12,345
3,345
33
15 Oct 2035
15,387
6,387
42
08 Jul 2038
16,384
7,384
44
Ordinal
Day Age
Date
Age
55th
8,911
21 Jan 2018
24
56th
9,241
17 Dec 2018
25
1
57th
9,577
18 Nov 2019
26
58th
9,919
25 Oct 2020
27
59th
10,267
08 Oct 2021
28
60th
10,621
27 Sep 2022
29
61st
10,981
22 Sep 2023
30
62nd
11,347
22 Sep 2024
31
63rd
11,719
29 Sep 2025
32
64th
12,097
12 Oct 2026
33
65th
12,481
31 Oct 2027
34
66th
12,871
24 Nov 2028
35
67th
13,267
25 Dec 2029
36
68th
13,669
31 Jan 2031
37
69th
14,077
14 Mar 2032
38
70th
14,491
02 May 2033
39
71st
14,911
26 Jun 2034
40
72nd
15,337
26 Aug 2035
41
73rd
15,769
31 Oct 2036
43
74th
16,207
12 Jan 2038
44