V is a string value. V is a list value. V is a classad value. V is a boolean value. V is an absolute time value.
V is a relative time value.
Not strict on first argument. Create an absolute time value of midnight for the given day. Returns substring of S. Negative offsets and lengths count from the end of the string. Converts V to an integer. Time values are converted to number of seconds, strings are parsed, bools are mapped to 0 or 1.