Gather well-formatted exposure times (using the EXPTIME card) from a list of FITS images. Because some headers cards have 15 decimal places, or use integer vs. floating point format, this routine is useful for adding nicer columns to table files than simply grabbing the text string versions of EXPTIME.

% etime_in_sec 
Usage: etime_in_sec list.05 N 
arg1 - input list of FITS images 
arg2 - run in verbose/debug mode (Y/N) 
% 
For a more detiled description see:
%  etime_in_sec --help