Every Day Counts
Zeisel Days
 
Age: 15,461 days
Date of birth
Your 8th Zeisel Day is on
Saturday
when you will be
24,211 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
21 Mar 2025
15,551
90
42
15 Apr 2025
15,576
115
42
03 Jun 2025
15,625
164
42
03 Jun 2025
15,625
164
42
25 Oct 2025
15,769
308
43
18 Mar 2026
15,913
452
43
16 May 2026
15,972
511
43
13 Jun 2026
16,000
539
43
02 Jul 2027
16,384
923
44
18 Feb 2031
17,711
2,250
48
26 Jun 2043
22,222
6,761
60
07 Jan 2046
23,148
7,687
63
05 Dec 2048
24,211
8,750
66
15 May 2131
54,321
38,860
148
Ordinal
Day Age
Date
Age
1st
105
06 Dec 1982
0
2nd
1,419
12 Jul 1986
3
3rd
1,729
18 May 1987
4
4th
1,885
21 Oct 1987
5
5th
4,505
23 Dec 1994
12
6th
5,719
20 Apr 1998
15
7th
15,387
08 Oct 2024
42
8th
24,211
05 Dec 2048
66
1
9th
25,085
28 Apr 2051
68
10th
27,559
04 Feb 2058
75
11th
31,929
22 Jan 2070
87
12th
54,205
19 Jan 2131
148