Every Day Counts
Hexagonal Days
 
Age: 10,468 days
Date of birth
Your 60th Hexagonal Day is on
Tuesday
when you will be
10,621 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
14 Jan 2019
10,501
33
28
08 Apr 2019
10,585
117
28
02 May 2019
10,609
141
29
14 May 2019
10,621
153
29
10 Jun 2019
10,648
180
29
16 Dec 2019
10,837
369
29
03 Apr 2020
10,946
478
29
27 May 2020
11,000
532
30
15 Sep 2020
11,111
643
30
15 Sep 2020
11,111
643
30
22 Dec 2021
11,574
1,106
31
01 Feb 2024
12,345
1,877
33
31 May 2032
15,387
4,919
42
22 Feb 2035
16,384
5,916
44
Ordinal
Day Age
Date
Age
59th
10,267
25 May 2018
28
60th
10,621
14 May 2019
29
1
61st
10,981
08 May 2020
30
62nd
11,347
09 May 2021
31
63rd
11,719
16 May 2022
32
64th
12,097
29 May 2023
33
65th
12,481
16 Jun 2024
34
66th
12,871
11 Jul 2025
35
67th
13,267
11 Aug 2026
36
68th
13,669
17 Sep 2027
37
69th
14,077
29 Oct 2028
38
70th
14,491
17 Dec 2029
39
71st
14,911
10 Feb 2031
40
72nd
15,337
11 Apr 2032
41
73rd
15,769
17 Jun 2033
43
74th
16,207
29 Aug 2034
44
75th
16,651
16 Nov 2035
45
76th
17,101
08 Feb 2037
46
77th
17,557
10 May 2038
48
78th
18,019
15 Aug 2039
49