Every Day Counts
Hexagonal Days
 
Age: 17,099 days
Date of birth
Your 76th Hexagonal Day is on
Friday
when you will be
17,101 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
25 Oct 2019
17,101
2
46
24 Dec 2019
17,161
62
46
03 Jan 2020
17,171
72
47
05 Jan 2020
17,173
74
47
06 Feb 2020
17,205
106
47
11 Jul 2020
17,361
262
47
11 Feb 2021
17,576
477
48
26 Jun 2021
17,711
612
48
11 Apr 2022
18,000
901
49
01 Nov 2033
22,222
5,123
60
15 May 2036
23,148
6,049
63
13 Apr 2039
24,211
7,112
66
16 Sep 2062
32,768
15,669
89
20 Sep 2121
54,321
37,222
148
Ordinal
Day Age
Date
Age
75th
16,651
01 Aug 2018
45
76th
17,101
25 Oct 2019
46
1
77th
17,557
23 Jan 2021
48
78th
18,019
30 Apr 2022
49
79th
18,487
11 Aug 2023
50
80th
18,961
27 Nov 2024
51
81st
19,441
22 Mar 2026
53
82nd
19,927
21 Jul 2027
54
83rd
20,419
24 Nov 2028
55
84th
20,917
06 Apr 2030
57
85th
21,421
23 Aug 2031
58
86th
21,931
14 Jan 2033
60
87th
22,447
14 Jun 2034
61
88th
22,969
18 Nov 2035
62
89th
23,497
29 Apr 2037
64
90th
24,031
15 Oct 2038
65
91st
24,571
07 Apr 2040
67
92nd
25,117
05 Oct 2041
68
93rd
25,669
10 Apr 2043
70
94th
26,227
19 Oct 2044
71