Every Day Counts
Hexagonal Days
 
Age: 29,243 days
Date of birth
Your 100th Hexagonal Day is on
Friday
when you will be
29,701 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
07 Jan 2020
29,292
49
80
27 Apr 2020
29,403
160
80
25 Oct 2020
29,584
341
80
19 Feb 2021
29,701
458
81
20 May 2021
29,791
548
81
19 Jun 2021
29,821
578
81
29 Jul 2021
29,861
618
81
15 Dec 2021
30,000
757
82
28 Mar 2027
31,929
2,686
87
14 Jul 2029
32,768
3,525
89
30 Jan 2031
33,333
4,090
91
19 Nov 2034
34,722
5,479
95
08 Oct 2066
46,368
17,125
126
17 Jul 2088
54,321
25,078
148
Ordinal
Day Age
Date
Age
99th
29,107
06 Jul 2019
79
100th
29,701
19 Feb 2021
81
1
101st
30,301
12 Oct 2022
82
102nd
30,907
09 Jun 2024
84
103rd
31,519
11 Feb 2026
86
104th
32,137
22 Oct 2027
87
105th
32,761
07 Jul 2029
89
106th
33,391
29 Mar 2031
91
107th
34,027
24 Dec 2032
93
108th
34,669
27 Sep 2034
94
109th
35,317
06 Jul 2036
96
110th
35,971
21 Apr 2038
98
111th
36,631
10 Feb 2040
100
112th
37,297
07 Dec 2041
102
113th
37,969
10 Oct 2043
103
114th
38,647
18 Aug 2045
105
115th
39,331
03 Jul 2047
107
116th
40,021
23 May 2049
109
117th
40,717
19 Apr 2051
111
118th
41,419
21 Mar 2053
113