Every Day Counts
Hexagonal Days
 
Age: 19,496 days
Date of birth
Your 82nd Hexagonal Day is on
Sunday
when you will be
19,927 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
22 Aug 2018
19,503
7
53
18 Nov 2018
19,591
95
53
27 Nov 2018
19,600
104
53
18 Feb 2019
19,683
187
53
22 Jul 2019
19,837
341
54
20 Oct 2019
19,927
431
54
01 Jan 2020
20,000
504
54
19 May 2020
20,139
643
55
31 Jan 2026
22,222
2,726
60
14 Aug 2028
23,148
3,652
63
13 Jul 2031
24,211
4,715
66
14 Sep 2043
28,657
9,161
78
16 Dec 2054
32,768
13,272
89
20 Dec 2113
54,321
34,825
148
Ordinal
Day Age
Date
Age
81st
19,441
21 Jun 2018
53
82nd
19,927
20 Oct 2019
54
1
83rd
20,419
23 Feb 2021
55
84th
20,917
06 Jul 2022
57
85th
21,421
22 Nov 2023
58
86th
21,931
15 Apr 2025
60
87th
22,447
13 Sep 2026
61
88th
22,969
17 Feb 2028
62
89th
23,497
29 Jul 2029
64
90th
24,031
14 Jan 2031
65
91st
24,571
07 Jul 2032
67
92nd
25,117
04 Jan 2034
68
93rd
25,669
10 Jul 2035
70
94th
26,227
18 Jan 2037
71
95th
26,791
05 Aug 2038
73
96th
27,361
26 Feb 2040
74
97th
27,937
24 Sep 2041
76
98th
28,519
29 Apr 2043
78
99th
29,107
07 Dec 2044
79
100th
29,701
24 Jul 2046
81