Every Day Counts
Hexagonal Days
 
Age: 20,915 days
Date of birth
Your 84th Hexagonal Day is on
Friday
when you will be
20,917 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
10 Jul 2020
20,917
2
57
01 Oct 2020
21,000
85
57
13 Oct 2020
21,012
97
57
26 Oct 2020
21,025
110
57
24 Jan 2021
21,115
200
57
30 May 2021
21,241
326
58
13 Mar 2022
21,528
613
58
11 May 2023
21,952
1,037
60
05 Feb 2024
22,222
1,307
60
19 Aug 2026
23,148
2,233
63
17 Jul 2029
24,211
3,296
66
18 Sep 2041
28,657
7,742
78
20 Dec 2052
32,768
11,853
89
25 Dec 2111
54,321
33,406
148
Ordinal
Day Age
Date
Age
83rd
20,419
28 Feb 2019
55
84th
20,917
10 Jul 2020
57
1
85th
21,421
26 Nov 2021
58
86th
21,931
20 Apr 2023
60
87th
22,447
17 Sep 2024
61
88th
22,969
21 Feb 2026
62
89th
23,497
03 Aug 2027
64
90th
24,031
18 Jan 2029
65
91st
24,571
12 Jul 2030
67
92nd
25,117
09 Jan 2032
68
93rd
25,669
14 Jul 2033
70
94th
26,227
23 Jan 2035
71
95th
26,791
09 Aug 2036
73
96th
27,361
02 Mar 2038
74
97th
27,937
29 Sep 2039
76
98th
28,519
03 May 2041
78
99th
29,107
12 Dec 2042
79
100th
29,701
28 Jul 2044
81
101st
30,301
20 Mar 2046
82
102nd
30,907
16 Nov 2047
84