Every Day Counts
Zeisel Days
 
Age: 25,080 days
Date of birth
Your 9th Zeisel Day is on
Friday
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
06 Jun 2025
25,085
5
68
08 Jul 2025
25,117
37
68
12 Aug 2025
25,152
72
68
29 Sep 2025
25,200
120
68
19 Dec 2025
25,281
201
69
05 Feb 2027
25,694
614
70
24 Mar 2027
25,741
661
70
08 Dec 2027
26,000
920
71
03 Sep 2030
27,000
1,920
73
18 Mar 2035
28,657
3,577
78
19 Jun 2046
32,768
7,688
89
05 Jan 2048
33,333
8,253
91
25 Oct 2051
34,722
9,642
95
23 Jun 2105
54,321
29,241
148
Ordinal
Day Age
Date
Age
1st
105
14 Jan 1957
0
2nd
1,419
20 Aug 1960
3
3rd
1,729
26 Jun 1961
4
4th
1,885
29 Nov 1961
5
5th
4,505
31 Jan 1969
12
6th
5,719
29 May 1972
15
7th
15,387
17 Nov 1998
42
8th
24,211
14 Jan 2023
66
9th
25,085
06 Jun 2025
68
1
10th
27,559
15 Mar 2032
75
11th
31,929
02 Mar 2044
87
12th
54,205
27 Feb 2105
148