Every Day Counts
Zeisel Days
 
Age: 24,197 days
Date of birth
Your 8th Zeisel Day is on
Tuesday
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
17 Feb 2026
24,211
14
66
20 Mar 2026
24,242
45
66
23 May 2026
24,306
109
66
27 May 2026
24,310
113
66
22 Jun 2026
24,336
139
66
14 Aug 2026
24,389
192
66
12 Feb 2027
24,571
374
67
08 Mar 2028
24,961
764
68
16 Apr 2028
25,000
803
68
21 Apr 2038
28,657
4,460
78
23 Jul 2049
32,768
8,571
89
08 Feb 2051
33,333
9,136
91
28 Nov 2054
34,722
10,525
95
27 Jul 2108
54,321
30,124
148
Ordinal
Day Age
Date
Age
1st
105
18 Feb 1960
0
2nd
1,419
24 Sep 1963
3
3rd
1,729
30 Jul 1964
4
4th
1,885
02 Jan 1965
5
5th
4,505
06 Mar 1972
12
6th
5,719
03 Jul 1975
15
7th
15,387
21 Dec 2001
42
8th
24,211
17 Feb 2026
66
1
9th
25,085
10 Jul 2028
68
10th
27,559
19 Apr 2035
75
11th
31,929
06 Apr 2047
87
12th
54,205
02 Apr 2108
148