[R] Convert time zone to difference from Coordinated Universal Time

[Tim.Williams at ucb.com]

Hello everyone,

I want to convert times provided by Sys.time()  to use  the difference from Coordinated Universal Time instead of the character abbreviation.

For example, instead of:
2014-09-03 21:12:35 EDT

I want the value as:
2004-09-03 13:20:00-04:00

Is there a way to do this with strftime() ?

Thanks in advance,

Tim

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