Every Day Counts
Hexagonal Days
 
Age: 8,903 days
Date of birth
Your 55th Hexagonal Day is on
Tuesday
when you will be
8,911 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
26 Jun 2018
8,911
8
24
26 Jun 2018
8,911
8
24
21 Sep 2018
8,998
95
24
23 Sep 2018
9,000
97
24
18 Oct 2018
9,025
122
24
21 Oct 2018
9,028
125
24
11 Jun 2019
9,261
358
25
19 Sep 2019
9,361
458
25
18 Jun 2021
9,999
1,096
27
21 Jan 2024
10,946
2,043
29
10 Oct 2025
11,574
2,671
31
20 Nov 2027
12,345
3,442
33
19 Mar 2036
15,387
6,484
42
11 Dec 2038
16,384
7,481
44
Ordinal
Day Age
Date
Age
54th
8,587
06 Aug 2017
23
55th
8,911
26 Jun 2018
24
1
56th
9,241
22 May 2019
25
57th
9,577
22 Apr 2020
26
58th
9,919
30 Mar 2021
27
59th
10,267
13 Mar 2022
28
60th
10,621
02 Mar 2023
29
61st
10,981
25 Feb 2024
30
62nd
11,347
25 Feb 2025
31
63rd
11,719
04 Mar 2026
32
64th
12,097
17 Mar 2027
33
65th
12,481
04 Apr 2028
34
66th
12,871
29 Apr 2029
35
67th
13,267
30 May 2030
36
68th
13,669
06 Jul 2031
37
69th
14,077
17 Aug 2032
38
70th
14,491
05 Oct 2033
39
71st
14,911
29 Nov 2034
40
72nd
15,337
29 Jan 2036
41
73rd
15,769
05 Apr 2037
43