Every Day Counts
Hexagonal Days
 
Age: 18,027 days
Date of birth
Your 79th Hexagonal Day is on
Wednesday
when you will be
18,487 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
08 Aug 2020
18,056
29
49
02 Sep 2020
18,081
54
49
05 Nov 2020
18,145
118
49
24 Jan 2021
18,225
198
49
07 Oct 2021
18,481
454
50
13 Oct 2021
18,487
460
50
10 Mar 2023
19,000
973
52
21 Jan 2025
19,683
1,656
53
04 Jan 2032
22,222
4,195
60
18 Jul 2034
23,148
5,121
63
15 Jun 2037
24,211
6,184
66
17 Aug 2049
28,657
10,630
78
18 Nov 2060
32,768
14,741
89
23 Nov 2119
54,321
36,294
148
Ordinal
Day Age
Date
Age
78th
18,019
02 Jul 2020
49
79th
18,487
13 Oct 2021
50
1
80th
18,961
30 Jan 2023
51
81st
19,441
24 May 2024
53
82nd
19,927
22 Sep 2025
54
83rd
20,419
27 Jan 2027
55
84th
20,917
08 Jun 2028
57
85th
21,421
25 Oct 2029
58
86th
21,931
19 Mar 2031
60
87th
22,447
16 Aug 2032
61
88th
22,969
20 Jan 2034
62
89th
23,497
02 Jul 2035
64
90th
24,031
17 Dec 2036
65
91st
24,571
10 Jun 2038
67
92nd
25,117
08 Dec 2039
68
93rd
25,669
12 Jun 2041
70
94th
26,227
22 Dec 2042
71
95th
26,791
08 Jul 2044
73
96th
27,361
29 Jan 2046
74
97th
27,937
28 Aug 2047
76