Every Day Counts
Hexagonal Days
 
Age: 18,017 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
06 Dec 2021
18,019
2
49
12 Jan 2022
18,056
39
49
06 Feb 2022
18,081
64
49
11 Apr 2022
18,145
128
49
30 Jun 2022
18,225
208
49
13 Mar 2023
18,481
464
50
13 Aug 2024
19,000
983
52
27 Jun 2026
19,683
1,666
53
09 Jun 2033
22,222
4,205
60
22 Dec 2035
23,148
5,131
63
19 Nov 2038
24,211
6,194
66
21 Jan 2051
28,657
10,640
78
24 Apr 2062
32,768
14,751
89
28 Apr 2121
54,321
36,304
148
Ordinal
Day Age
Date
Age
77th
17,557
31 Aug 2020
48
78th
18,019
06 Dec 2021
49
1
79th
18,487
19 Mar 2023
50
80th
18,961
05 Jul 2024
51
81st
19,441
28 Oct 2025
53
82nd
19,927
26 Feb 2027
54
83rd
20,419
02 Jul 2028
55
84th
20,917
12 Nov 2029
57
85th
21,421
31 Mar 2031
58
86th
21,931
22 Aug 2032
60
87th
22,447
20 Jan 2034
61
88th
22,969
26 Jun 2035
62
89th
23,497
05 Dec 2036
64
90th
24,031
23 May 2038
65
91st
24,571
14 Nov 2039
67
92nd
25,117
13 May 2041
68
93rd
25,669
16 Nov 2042
70
94th
26,227
27 May 2044
71
95th
26,791
12 Dec 2045
73
96th
27,361
05 Jul 2047
74