Every Day Counts
Hexagonal Days
 
Age: 9,596 days
Date of birth
Your 58th Hexagonal Day is on
Tuesday
when you will be
9,919 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
30 Apr 2019
9,604
8
26
04 Jul 2019
9,669
73
26
26 Aug 2019
9,722
126
26
03 Sep 2019
9,730
134
26
23 Dec 2019
9,841
245
26
10 Mar 2020
9,919
323
27
29 May 2020
9,999
403
27
30 May 2020
10,000
404
27
09 Mar 2022
10,648
1,052
29
01 Jan 2023
10,946
1,350
29
20 Sep 2024
11,574
1,978
31
31 Oct 2026
12,345
2,749
33
28 Feb 2035
15,387
5,791
42
21 Nov 2037
16,384
6,788
44
Ordinal
Day Age
Date
Age
57th
9,577
03 Apr 2019
26
58th
9,919
10 Mar 2020
27
1
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
75th
16,651
15 Aug 2038
45
76th
17,101
08 Nov 2039
46