Every Day Counts
Hexagonal Days
 
Age: 17,537 days
Date of birth
Your 77th Hexagonal Day is on
Wednesday
when you will be
17,557 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
17 Apr 2024
17,557
20
48
01 May 2024
17,571
34
48
06 May 2024
17,576
39
48
08 May 2024
17,578
41
48
27 Aug 2024
17,689
152
48
18 Sep 2024
17,711
174
48
06 Jan 2025
17,821
284
48
04 Jul 2025
18,000
463
49
29 Aug 2025
18,056
519
49
24 Jan 2037
22,222
4,685
60
08 Aug 2039
23,148
5,611
63
06 Jul 2042
24,211
6,674
66
09 Dec 2065
32,768
15,231
89
13 Dec 2124
54,321
36,784
148
Ordinal
Day Age
Date
Age
76th
17,101
17 Jan 2023
46
77th
17,557
17 Apr 2024
48
1
78th
18,019
23 Jul 2025
49
79th
18,487
03 Nov 2026
50
80th
18,961
20 Feb 2028
51
81st
19,441
14 Jun 2029
53
82nd
19,927
13 Oct 2030
54
83rd
20,419
17 Feb 2032
55
84th
20,917
29 Jun 2033
57
85th
21,421
15 Nov 2034
58
86th
21,931
08 Apr 2036
60
87th
22,447
06 Sep 2037
61
88th
22,969
10 Feb 2039
62
89th
23,497
22 Jul 2040
64
90th
24,031
07 Jan 2042
65
91st
24,571
01 Jul 2043
67
92nd
25,117
28 Dec 2044
68
93rd
25,669
03 Jul 2046
70
94th
26,227
12 Jan 2048
71
95th
26,791
29 Jul 2049
73