Every Day Counts
Hexagonal Days
 
Age: 23,054 days
Date of birth
Your 89th Hexagonal Day is on
Monday
when you will be
23,497 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 Sep 2018
23,104
50
63
07 Oct 2018
23,132
78
63
23 Oct 2018
23,148
94
63
03 Jan 2019
23,220
166
63
08 Aug 2019
23,437
383
64
07 Oct 2019
23,497
443
64
29 Jan 2020
23,611
557
64
21 Feb 2021
24,000
946
65
20 Sep 2021
24,211
1,157
66
17 Mar 2022
24,389
1,335
66
22 Nov 2033
28,657
5,603
78
23 Feb 2045
32,768
9,714
89
11 Sep 2046
33,333
10,279
91
28 Feb 2104
54,321
31,267
148
Ordinal
Day Age
Date
Age
88th
22,969
27 Apr 2018
62
89th
23,497
07 Oct 2019
64
1
90th
24,031
24 Mar 2021
65
91st
24,571
15 Sep 2022
67
92nd
25,117
14 Mar 2024
68
93rd
25,669
17 Sep 2025
70
94th
26,227
29 Mar 2027
71
95th
26,791
13 Oct 2028
73
96th
27,361
06 May 2030
74
97th
27,937
03 Dec 2031
76
98th
28,519
07 Jul 2033
78
99th
29,107
15 Feb 2035
79
100th
29,701
01 Oct 2036
81
101st
30,301
24 May 2038
82
102nd
30,907
20 Jan 2040
84
103rd
31,519
23 Sep 2041
86
104th
32,137
03 Jun 2043
87
105th
32,761
16 Feb 2045
89
106th
33,391
08 Nov 2046
91
107th
34,027
05 Aug 2048
93