Every Day Counts
Hexagonal Days
 
Age: 15,745 days
Date of birth
Your 73rd Hexagonal Day is on
Sunday
when you will be
15,769 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
03 Apr 2024
15,751
6
43
05 Apr 2024
15,753
8
43
21 Apr 2024
15,769
24
43
06 Aug 2024
15,876
131
43
12 Sep 2024
15,913
168
43
10 Nov 2024
15,972
227
43
08 Dec 2024
16,000
255
43
27 Dec 2025
16,384
639
44
02 Apr 2029
17,576
1,831
48
15 Aug 2029
17,711
1,966
48
21 Dec 2041
22,222
6,477
60
04 Jul 2044
23,148
7,403
63
02 Jun 2047
24,211
8,466
66
09 Nov 2129
54,321
38,576
148
Ordinal
Day Age
Date
Age
72nd
15,337
14 Feb 2023
41
73rd
15,769
21 Apr 2024
43
1
74th
16,207
03 Jul 2025
44
75th
16,651
20 Sep 2026
45
76th
17,101
14 Dec 2027
46
77th
17,557
14 Mar 2029
48
78th
18,019
19 Jun 2030
49
79th
18,487
30 Sep 2031
50
80th
18,961
16 Jan 2033
51
81st
19,441
11 May 2034
53
82nd
19,927
09 Sep 2035
54
83rd
20,419
13 Jan 2037
55
84th
20,917
26 May 2038
57
85th
21,421
12 Oct 2039
58
86th
21,931
05 Mar 2041
60
87th
22,447
03 Aug 2042
61
88th
22,969
07 Jan 2044
62
89th
23,497
18 Jun 2045
64
90th
24,031
04 Dec 2046
65
91st
24,571
27 May 2048
67