Every Day Counts
Hexagonal Days
 
Age: 17,540 days
Date of birth
Your 77th Hexagonal Day is on
Saturday
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
26 Jul 2025
17,557
17
48
09 Aug 2025
17,571
31
48
14 Aug 2025
17,576
36
48
16 Aug 2025
17,578
38
48
05 Dec 2025
17,689
149
48
27 Dec 2025
17,711
171
48
16 Apr 2026
17,821
281
48
12 Oct 2026
18,000
460
49
07 Dec 2026
18,056
516
49
04 May 2038
22,222
4,682
60
15 Nov 2040
23,148
5,608
63
14 Oct 2043
24,211
6,671
66
19 Mar 2067
32,768
15,228
89
23 Mar 2126
54,321
36,781
148
Ordinal
Day Age
Date
Age
76th
17,101
26 Apr 2024
46
77th
17,557
26 Jul 2025
48
1
78th
18,019
31 Oct 2026
49
79th
18,487
11 Feb 2028
50
80th
18,961
30 May 2029
51
81st
19,441
22 Sep 2030
53
82nd
19,927
21 Jan 2032
54
83rd
20,419
27 May 2033
55
84th
20,917
07 Oct 2034
57
85th
21,421
23 Feb 2036
58
86th
21,931
17 Jul 2037
60
87th
22,447
15 Dec 2038
61
88th
22,969
20 May 2040
62
89th
23,497
30 Oct 2041
64
90th
24,031
17 Apr 2043
65
91st
24,571
08 Oct 2044
67
92nd
25,117
07 Apr 2046
68
93rd
25,669
11 Oct 2047
70
94th
26,227
21 Apr 2049
71
95th
26,791
06 Nov 2050
73