Every Day Counts
Hexagonal Days
 
Age: 16,657 days
Date of birth
Your 76th Hexagonal Day is on
Thursday
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
27 Jul 2018
16,661
4
45
02 Aug 2018
16,667
10
45
18 Jan 2019
16,836
179
46
23 Mar 2019
16,900
243
46
01 Jul 2019
17,000
343
46
10 Oct 2019
17,101
444
46
21 Dec 2019
17,173
516
47
27 Jan 2021
17,576
919
48
11 Jun 2021
17,711
1,054
48
17 Oct 2033
22,222
5,565
60
30 Apr 2036
23,148
6,491
63
29 Mar 2039
24,211
7,554
66
01 Sep 2062
32,768
16,111
89
05 Sep 2121
54,321
37,664
148
Ordinal
Day Age
Date
Age
75th
16,651
17 Jul 2018
45
76th
17,101
10 Oct 2019
46
1
77th
17,557
08 Jan 2021
48
78th
18,019
15 Apr 2022
49
79th
18,487
27 Jul 2023
50
80th
18,961
12 Nov 2024
51
81st
19,441
07 Mar 2026
53
82nd
19,927
06 Jul 2027
54
83rd
20,419
09 Nov 2028
55
84th
20,917
22 Mar 2030
57
85th
21,421
08 Aug 2031
58
86th
21,931
30 Dec 2032
60
87th
22,447
30 May 2034
61
88th
22,969
03 Nov 2035
62
89th
23,497
14 Apr 2037
64
90th
24,031
30 Sep 2038
65
91st
24,571
23 Mar 2040
67
92nd
25,117
20 Sep 2041
68
93rd
25,669
26 Mar 2043
70
94th
26,227
04 Oct 2044
71