Every Day Counts
Hexagonal Days
 
Age: 21,920 days
Date of birth
Your 86th Hexagonal Day is on
Monday
when you will be
21,931 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
30 Apr 2018
21,931
11
60
14 May 2018
21,945
25
60
21 May 2018
21,952
32
60
30 May 2018
21,961
41
60
08 Jul 2018
22,000
80
60
30 Jul 2018
22,022
102
60
25 Jan 2019
22,201
281
60
15 Feb 2019
22,222
302
60
15 Feb 2019
22,222
302
60
29 Aug 2021
23,148
1,228
63
27 Jul 2024
24,211
2,291
66
28 Sep 2036
28,657
6,737
78
31 Dec 2047
32,768
10,848
89
04 Jan 2107
54,321
32,401
148
Ordinal
Day Age
Date
Age
85th
21,421
06 Dec 2016
58
86th
21,931
30 Apr 2018
60
1
87th
22,447
28 Sep 2019
61
88th
22,969
03 Mar 2021
62
89th
23,497
13 Aug 2022
64
90th
24,031
29 Jan 2024
65
91st
24,571
22 Jul 2025
67
92nd
25,117
19 Jan 2027
68
93rd
25,669
24 Jul 2028
70
94th
26,227
02 Feb 2030
71
95th
26,791
20 Aug 2031
73
96th
27,361
12 Mar 2033
74
97th
27,937
09 Oct 2034
76
98th
28,519
13 May 2036
78
99th
29,107
22 Dec 2037
79
100th
29,701
08 Aug 2039
81
101st
30,301
30 Mar 2041
82
102nd
30,907
26 Nov 2042
84
103rd
31,519
30 Jul 2044
86
104th
32,137
09 Apr 2046
87