Every Day Counts
Hexagonal Days
 
Age: 23,544 days
Date of birth
Your 90th Hexagonal Day is on
Friday
when you will be
24,031 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
21 Sep 2018
23,611
67
64
12 Oct 2018
23,632
88
64
02 Nov 2018
23,653
109
64
04 Jan 2019
23,716
172
64
15 Oct 2019
24,000
456
65
15 Nov 2019
24,031
487
65
25 Apr 2020
24,193
649
66
13 May 2020
24,211
667
66
07 Nov 2020
24,389
845
66
15 Jul 2032
28,657
5,113
78
17 Oct 2043
32,768
9,224
89
04 May 2045
33,333
9,789
91
21 Feb 2049
34,722
11,178
95
21 Oct 2102
54,321
30,777
148
Ordinal
Day Age
Date
Age
89th
23,497
30 May 2018
64
90th
24,031
15 Nov 2019
65
1
91st
24,571
08 May 2021
67
92nd
25,117
05 Nov 2022
68
93rd
25,669
10 May 2024
70
94th
26,227
19 Nov 2025
71
95th
26,791
06 Jun 2027
73
96th
27,361
27 Dec 2028
74
97th
27,937
26 Jul 2030
76
98th
28,519
28 Feb 2032
78
99th
29,107
08 Oct 2033
79
100th
29,701
25 May 2035
81
101st
30,301
14 Jan 2037
82
102nd
30,907
12 Sep 2038
84
103rd
31,519
16 May 2040
86
104th
32,137
24 Jan 2042
87
105th
32,761
10 Oct 2043
89
106th
33,391
01 Jul 2045
91
107th
34,027
29 Mar 2047
93
108th
34,669
30 Dec 2048
94