Thanks Petr!
I am still unable to come up with a conversion formula/trick to convert my time data to POSIXlt which then can be used in read.table. Below are again a few lines from my file. Since as you see there are several columns of time data ONLY (no date), I am hoping that there is a way to convert the time columns to POSIXlt or chron in the read.table statement. I was able to use as.Date in the read.table to convert the dates. Thanks-EK O Date Name Time Inter Dura Prep Hht Pred 1 312171 7/1/1995 Old-1 13:37 1:43 4:42 13:16 162 13:19 2 358237 5/25/1993 Old-2 12:22 1:31 4:16 12:03 160 12:13 3 339971 7/17/1994 Old-3 15:54 1:23 4:36 15:43 160 15:51 [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.