Every Day Counts
Hexagonal Days
 
Age: 19,290 days
Date of birth
Your 81st Hexagonal Day is on
Monday
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
29 Mar 2024
19,291
tomorrow
52
13 Apr 2024
19,306
16
52
28 Apr 2024
19,321
31
52
26 Aug 2024
19,441
151
53
29 Aug 2024
19,444
154
53
25 Apr 2025
19,683
393
53
26 Sep 2025
19,837
547
54
08 Mar 2026
20,000
710
54
07 Apr 2032
22,222
2,932
60
20 Oct 2034
23,148
3,858
63
17 Sep 2037
24,211
4,921
66
19 Nov 2049
28,657
9,367
78
20 Feb 2061
32,768
13,478
89
25 Feb 2120
54,321
35,031
148
Ordinal
Day Age
Date
Age
80th
18,961
04 May 2023
51
81st
19,441
26 Aug 2024
53
1
82nd
19,927
25 Dec 2025
54
83rd
20,419
01 May 2027
55
84th
20,917
10 Sep 2028
57
85th
21,421
27 Jan 2030
58
86th
21,931
21 Jun 2031
60
87th
22,447
18 Nov 2032
61
88th
22,969
24 Apr 2034
62
89th
23,497
04 Oct 2035
64
90th
24,031
21 Mar 2037
65
91st
24,571
12 Sep 2038
67
92nd
25,117
11 Mar 2040
68
93rd
25,669
14 Sep 2041
70
94th
26,227
26 Mar 2043
71
95th
26,791
10 Oct 2044
73
96th
27,361
03 May 2046
74
97th
27,937
30 Nov 2047
76
98th
28,519
04 Jul 2049
78
99th
29,107
12 Feb 2051
79