Every Day Counts
Hexagonal Days
 
Age: 18,811 days
Date of birth
Your 80th Hexagonal Day is on
Monday
when you will be
18,961 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
07 Jun 2024
18,881
70
51
11 Jul 2024
18,915
104
51
26 Aug 2024
18,961
150
51
04 Oct 2024
19,000
189
52
17 Nov 2024
19,044
233
52
06 Mar 2025
19,153
342
52
22 Dec 2025
19,444
633
53
18 Aug 2026
19,683
872
53
31 Jul 2033
22,222
3,411
60
12 Feb 2036
23,148
4,337
63
10 Jan 2039
24,211
5,400
66
14 Mar 2051
28,657
9,846
78
15 Jun 2062
32,768
13,957
89
19 Jun 2121
54,321
35,510
148
Ordinal
Day Age
Date
Age
79th
18,487
10 May 2023
50
80th
18,961
26 Aug 2024
51
1
81st
19,441
19 Dec 2025
53
82nd
19,927
19 Apr 2027
54
83rd
20,419
23 Aug 2028
55
84th
20,917
03 Jan 2030
57
85th
21,421
22 May 2031
58
86th
21,931
13 Oct 2032
60
87th
22,447
13 Mar 2034
61
88th
22,969
17 Aug 2035
62
89th
23,497
26 Jan 2037
64
90th
24,031
14 Jul 2038
65
91st
24,571
05 Jan 2040
67
92nd
25,117
04 Jul 2041
68
93rd
25,669
07 Jan 2043
70
94th
26,227
18 Jul 2044
71
95th
26,791
02 Feb 2046
73
96th
27,361
26 Aug 2047
74
97th
27,937
24 Mar 2049
76
98th
28,519
27 Oct 2050
78