Every Day Counts
Hexagonal Days
 
Age: 18,968 days
Date of birth
Your 81st Hexagonal Day is on
Sunday
when you will be
19,441 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 2024
18,981
13
51
25 Aug 2024
19,000
32
52
08 Oct 2024
19,044
76
52
13 Dec 2024
19,110
142
52
25 Jan 2025
19,153
185
52
09 Nov 2025
19,441
473
53
12 Nov 2025
19,444
476
53
09 Jul 2026
19,683
715
53
21 Jun 2033
22,222
3,254
60
03 Jan 2036
23,148
4,180
63
01 Dec 2038
24,211
5,243
66
02 Feb 2051
28,657
9,689
78
06 May 2062
32,768
13,800
89
10 May 2121
54,321
35,353
148
Ordinal
Day Age
Date
Age
80th
18,961
17 Jul 2024
51
81st
19,441
09 Nov 2025
53
1
82nd
19,927
10 Mar 2027
54
83rd
20,419
14 Jul 2028
55
84th
20,917
24 Nov 2029
57
85th
21,421
12 Apr 2031
58
86th
21,931
03 Sep 2032
60
87th
22,447
01 Feb 2034
61
88th
22,969
08 Jul 2035
62
89th
23,497
17 Dec 2036
64
90th
24,031
04 Jun 2038
65
91st
24,571
26 Nov 2039
67
92nd
25,117
25 May 2041
68
93rd
25,669
28 Nov 2042
70
94th
26,227
08 Jun 2044
71
95th
26,791
24 Dec 2045
73
96th
27,361
17 Jul 2047
74
97th
27,937
12 Feb 2049
76
98th
28,519
17 Sep 2050
78
99th
29,107
27 Apr 2052
79