Every Day Counts
Hexagonal Days
 
Age: 17,708 days
Date of birth
Your 78th Hexagonal Day is on
Monday
when you will be
18,019 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
01 Apr 2024
17,711
3
48
26 May 2024
17,766
58
48
31 May 2024
17,771
63
48
20 Jul 2024
17,821
113
48
02 Dec 2024
17,956
248
49
15 Jan 2025
18,000
292
49
03 Feb 2025
18,019
311
49
12 Mar 2025
18,056
348
49
25 Aug 2029
19,683
1,975
53
07 Aug 2036
22,222
4,514
60
19 Feb 2039
23,148
5,440
63
17 Jan 2042
24,211
6,503
66
22 Jun 2065
32,768
15,060
89
26 Jun 2124
54,321
36,613
148
Ordinal
Day Age
Date
Age
77th
17,557
30 Oct 2023
48
78th
18,019
03 Feb 2025
49
1
79th
18,487
17 May 2026
50
80th
18,961
03 Sep 2027
51
81st
19,441
26 Dec 2028
53
82nd
19,927
26 Apr 2030
54
83rd
20,419
31 Aug 2031
55
84th
20,917
10 Jan 2033
57
85th
21,421
29 May 2034
58
86th
21,931
21 Oct 2035
60
87th
22,447
20 Mar 2037
61
88th
22,969
24 Aug 2038
62
89th
23,497
03 Feb 2040
64
90th
24,031
21 Jul 2041
65
91st
24,571
12 Jan 2043
67
92nd
25,117
11 Jul 2044
68
93rd
25,669
14 Jan 2046
70
94th
26,227
26 Jul 2047
71
95th
26,791
09 Feb 2049
73
96th
27,361
02 Sep 2050
74