Convert a string date to a timestamp

Question

Is there any simple way to convert a RFC HTTP date into a timestamp in Lua?

\"Sat, 29 Oct 1994 19:43:31 GMT\"

into

783467011

Answer 1

Arrowmaster's answer above would be perfect if daylight saving time is considered. Also using array seems cleaner.

s="Sat, 29 Oct 1994 19:43:31 GMT"
p="%a+, (%d+) (%a+) (%d+) (%d+):(%d+):(%d+) GMT"
date={}
date['day'],date['month'],date['year'],date['hour'],date['min'],date['sec']=s:match(p)
MON={Jan=1,Feb=2,Mar=3,Apr=4,May=5,Jun=6,Jul=7,Aug=8,Sep=9,Oct=10,Nov=11,Dec=12}
date['month']=MON[date['month']]
date["isdst"] = false  -- new code
offset=os.time()-os.time(os.date("!*t"))
print(os.time(date)+offset)