The 'timeDate' class fulfils the conventions of the ISO 8601 standard
as well as of the ANSI C and POSIX standards. Beyond these standards
it provides the "Financial Center" concept which allows to handle data
records collected in different time zones and mix them up to have
always the proper time stamps with respect to your personal financial
center, or alternatively to the GMT reference time. It can thus also
handle time stamps from historical data records from the same time
zone, even if the financial centers changed day light saving times at
different calendar dates.

Homepage:
https://CRAN.R-project.org/package=timeDate
