Bioequivalence and Bioavailability Forum • Century leap years

Century leap years [Software]

posted by Helmut – Vienna, Austria, 2014-02-20 02:03 (4501 d 16:50 ago) – Posting: # 12460
Views: 7,901

Hi Simon,

❝ ❝ ... Nasty in Excel.

❝

❝ I don't believe, nor does Phoenix ;0) that 1900 was a leap year; https://en.wikipedia.org/wiki/Leap_year

Oops – THX for brushing up my knowledge (https://en.wikipedia.org/wiki/Century_leap_year).

❝ although I know Excel does think that, I can't recall whether SAS is correctly presenting it; I am sure it does.

According to the manual:

SAS date value

is a value that represents the number of days between January 1, 1960, and a specified date. SAS can perform calculations on dates ranging from A.D. 1582 to A.D. 19,900. Dates before January 1, 1960, are negative numbers; dates after are positive numbers.

SAS date values account for all leap year days, including the leap year day in the year 2000.
SAS date values can reliably tell you what day of the week a particular day fell on as far back as September 1752, when the calendar was adjusted by dropping several days. SAS day-of-the-week and length-of-time calculations are accurate in the future to A.D. 19,900.

—
Dif-tor heh smusma 🖖🏼 Довге життя Україна!
Helmut Schütz

The quality of responses received is directly proportional to the quality of the question asked. 🚮
Science Quotes

Complete thread:

PHOENIX 6.3 and intrasubject variance AngusMcLean 2014-01-02 19:02
- PHX: CVs only for 2×2 Helmut 2014-01-02 19:47
  - PHX: CVs only for 2×2 AngusMcLean 2014-01-02 22:53
    - PHX: Example Helmut 2014-01-03 00:21
      - PHX: Example AngusMcLean 2014-01-03 16:25
        
        PHX: Example Helmut 2014-01-03 17:47
        
        PHX: Example SDavis 2014-02-19 23:43
        
        Century leap yearsHelmut 2014-02-20 01:03
      - PHX: Example AngusMcLean 2014-01-03 18:21