Every Day Counts
Zeisel Days
 
Age: 25,239 days
Date of birth
Your 10th Zeisel Day is on
Friday
when you will be
27,559 days old

A Zeisel Day occurs when your day age is a Zeisel number.

A Zeisel number, named after Helmut Zeisel, is a square-free integer k with at least three prime factors which fall into the pattern

px = apx - 1 + b

where a and b are some integer constants and x is the index number of each prime factor in the factorization, sorted from lowest to highest.

Who would not want to celebrate that?

Remind me, please


Next Main Events
Day Age
Event
Days Ahead
Year Age
01 Oct 2018
25,252
13
69
30 Oct 2018
25,281
42
69
23 Mar 2019
25,425
186
69
22 Nov 2019
25,669
430
70
17 Dec 2019
25,694
455
70
02 Feb 2020
25,741
502
70
18 Oct 2020
26,000
761
71
15 Jul 2023
27,000
1,761
73
24 Jan 2025
27,559
2,320
75
27 Jan 2028
28,657
3,418
78
30 Apr 2039
32,768
7,529
89
15 Nov 2040
33,333
8,094
91
04 Sep 2044
34,722
9,483
95
03 May 2098
54,321
29,082
148
Ordinal
Day Age
Date
Age
1st
105
25 Nov 1949
0
2nd
1,419
01 Jul 1953
3
3rd
1,729
07 May 1954
4
4th
1,885
10 Oct 1954
5
5th
4,505
12 Dec 1961
12
6th
5,719
09 Apr 1965
15
7th
15,387
28 Sep 1991
42
8th
24,211
25 Nov 2015
66
9th
25,085
17 Apr 2018
68
10th
27,559
24 Jan 2025
75
1
11th
31,929
11 Jan 2037
87
12th
54,205
07 Jan 2098
148