Every Day Counts
Zeisel Days
 
Age: 25,082 days
Date of birth
Your 9th Zeisel Day is on
Wednesday
when you will be
25,085 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
04 Jun 2025
25,085
3
68
06 Jul 2025
25,117
35
68
10 Aug 2025
25,152
70
68
27 Sep 2025
25,200
118
68
17 Dec 2025
25,281
199
69
03 Feb 2027
25,694
612
70
22 Mar 2027
25,741
659
70
06 Dec 2027
26,000
918
71
01 Sep 2030
27,000
1,918
73
16 Mar 2035
28,657
3,575
78
17 Jun 2046
32,768
7,686
89
03 Jan 2048
33,333
8,251
91
23 Oct 2051
34,722
9,640
95
21 Jun 2105
54,321
29,239
148
Ordinal
Day Age
Date
Age
1st
105
12 Jan 1957
0
2nd
1,419
18 Aug 1960
3
3rd
1,729
24 Jun 1961
4
4th
1,885
27 Nov 1961
5
5th
4,505
29 Jan 1969
12
6th
5,719
27 May 1972
15
7th
15,387
15 Nov 1998
42
8th
24,211
12 Jan 2023
66
9th
25,085
04 Jun 2025
68
1
10th
27,559
13 Mar 2032
75
11th
31,929
29 Feb 2044
87
12th
54,205
25 Feb 2105
148