All Questions
Tagged with calendar-computations arithmetic
5
questions
2
votes
1
answer
971
views
How exactly to calculate a Julian Date from today's date?
I have today discovered the intricacies of software dates. That led me to this page which shows:
$$JD=int[365.25\; y]+int[30.6001\; (m+1)]+D+\frac{UT\_hours}{24.0}+1\,720\,981.5
\qquad$$
However, ...
- 3,773
0
votes
1
answer
142
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Tonalpohualli calculations
I was doing some math on the Tonalpohualli, the mexica ritual calendar. This calendar has 260 days divided in 13-days periods associated with 20 distinct symbols. Every 13-days period is called a ...
- 276
28
votes
3
answers
38k
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Why does this age calculation trick work?
The trick works like this: Take the current date in the format yyyymmdd and subtract it with your date of birth taken in the same format. Drop the last four digits to get your age.
For example, I was ...
- 734
0
votes
0
answers
1k
views
How to find the date for the recurring events in calendar?
In my scenario, I have a event ($e_1$) with
...
- 101
2
votes
0
answers
55
views
when to use ( end point/date - start point/date + 1) , and when to use end point /date - start point /date? [duplicate]
This is a simple question on difference. I have seen the following situation -
for example how many day you spend on a travel when the travel date was 14-Aug-2014 till 25-August-2014. The answer for ...
- 631