Every Day Counts
Hexagonal Days
 
Age: 16,745 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
06 Aug 2018
16,761
16
45
20 Oct 2018
16,836
91
46
23 Dec 2018
16,900
155
46
02 Apr 2019
17,000
255
46
12 Jul 2019
17,101
356
46
22 Sep 2019
17,173
428
47
28 Mar 2020
17,361
616
47
29 Oct 2020
17,576
831
48
13 Mar 2021
17,711
966
48
19 Jul 2033
22,222
5,477
60
31 Jan 2036
23,148
6,403
63
29 Dec 2038
24,211
7,466
66
03 Jun 2062
32,768
16,023
89
07 Jun 2121
54,321
37,576
148
Ordinal
Day Age
Date
Age
75th
16,651
18 Apr 2018
45
76th
17,101
12 Jul 2019
46
1
77th
17,557
10 Oct 2020
48
78th
18,019
15 Jan 2022
49
79th
18,487
28 Apr 2023
50
80th
18,961
14 Aug 2024
51
81st
19,441
07 Dec 2025
53
82nd
19,927
07 Apr 2027
54
83rd
20,419
11 Aug 2028
55
84th
20,917
22 Dec 2029
57
85th
21,421
10 May 2031
58
86th
21,931
01 Oct 2032
60
87th
22,447
01 Mar 2034
61
88th
22,969
05 Aug 2035
62
89th
23,497
14 Jan 2037
64
90th
24,031
02 Jul 2038
65
91st
24,571
24 Dec 2039
67
92nd
25,117
22 Jun 2041
68
93rd
25,669
26 Dec 2042
70
94th
26,227
06 Jul 2044
71