> tm <- ISOdate(2005, 08, 29, hour =3D 12, tz =3D "EDT")
> tm
[1] "2005-08-29 11:00:00 EDT"
## Firstly, notice that the hour is 11, but was set to 12.
> tm + 0
[1] "2005-08-29 11:00:00 EDT"
> tm + 3600 ## Add an hour
[1] "2005-08-29 12:00:00 EDT"
> tm + c(0, 1) * 3600 ## Repeat
[1] "2005-08-29 07:00:00 Eastern Daylight Time"
[2] "2005-08-29 08:00:00 Eastern Daylight Time"
Oddly, the first two results differ from the second two by 4 hours.
> version
_ =20
platform i386-pc-mingw32
arch i386 =20
os mingw32 =20
system i386, mingw32 =20
status =20
major 2 =20
minor 1.1 =20
year 2005 =20
month 06 =20
day 20 =20
language R =20
Robert McGehee
Quantitative Analyst
Geode Capital Management, LLC
53 State Street, 5th Floor | Boston, MA | 02109
Tel: 617/392-8396 Fax:617/476-6389
mailto:[EMAIL PROTECTED]
This e-mail, and any attachments hereto, are intended for us...{{dropped}}
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