Every Day Counts
Hexagonal Days
 
Age: 9,947 days
Date of birth
Your 59th Hexagonal Day is on
Saturday
when you will be
10,267 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
09 Apr 2020
9,999
52
27
09 Apr 2020
9,999
52
27
10 Apr 2020
10,000
53
27
10 Apr 2020
10,000
53
27
21 Apr 2020
10,011
64
27
02 Jan 2021
10,267
320
28
09 Mar 2021
10,333
386
28
01 Jun 2021
10,417
470
28
18 Jan 2022
10,648
701
29
12 Nov 2022
10,946
999
29
01 Aug 2024
11,574
1,627
31
11 Sep 2026
12,345
2,398
33
09 Jan 2035
15,387
5,440
42
02 Oct 2037
16,384
6,437
44
Ordinal
Day Age
Date
Age
58th
9,919
20 Jan 2020
27
59th
10,267
02 Jan 2021
28
1
60th
10,621
22 Dec 2021
29
61st
10,981
17 Dec 2022
30
62nd
11,347
18 Dec 2023
31
63rd
11,719
24 Dec 2024
32
64th
12,097
06 Jan 2026
33
65th
12,481
25 Jan 2027
34
66th
12,871
19 Feb 2028
35
67th
13,267
21 Mar 2029
36
68th
13,669
27 Apr 2030
37
69th
14,077
09 Jun 2031
38
70th
14,491
27 Jul 2032
39
71st
14,911
20 Sep 2033
40
72nd
15,337
20 Nov 2034
41
73rd
15,769
26 Jan 2036
43
74th
16,207
08 Apr 2037
44
75th
16,651
26 Jun 2038
45
76th
17,101
19 Sep 2039
46
77th
17,557
18 Dec 2040
48