Non-Gregorian dates and calendars
111143
How to use traditional (national/native) dates and calendars?
40197
How to deal with time series which change in seasonality or other patterns?
139146
Calendar to Date conversion for dates before 15 Oct 1582. Gregorian to Julian calendar switch
113053
Zero-based month numbering
118130
Mathematical notation around the world
8006
calendar scheduler algorithm
100425
JavaScript date objects UK dates
158689
Date transformation for KNN
136355
Accessing dates in PHP beyond 2038
8874
Why is January month 0 in Java Calendar?
23458
Date Formatting for Deadlines
120890
How to store only time; not date and time?
4777
Convert a string to a GregorianCalendar
35380
android: EXDATE format when adding a calendar event
37954
How can I determine if a date is between two dates in Java?
125309
Written date formats in US English: how jarring is it to use the UK format?
72584
Answering about the time