Date manipulation: Difference between revisions
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<pre>
March 7 2009 7:30pm EST + 12 hours ───► 8 Mar 2009 7:30am EST
</pre>
=={{header|Ring}}==
<lang ring>
# Project : Date manipulation
# Date : 2018/02/14
# Author : Gal Zsolt (~ CalmoSoft ~)
# Email : <calmosoft@gmail.com>
load "stdlib.ring"
thedate = "March 7 2009 7:30pm EST"
monthname = "January February March April May June July August September October November December"
for i = 1 to 12
if thedate[1] = monthname[i]
monthnum = i
ok
next
thedate = str2list(substr(thedate, " ", nl))
t = thedate[4]
t1 = substr(t,"pm", "")
t2 = substr(t1,":",".")
t3 = number(t2)
if right(t,2) = "pm"
t3 = t3+ 12
ok
ap = "pm"
d = "07/03/2009"
if t3 + 12 > 24
d = adddays("07/03/2009",1)
ap = "am"
ok
see d + " " + t1 + " " + ap + nl
</lang>
Output:
<pre>
08/03/2009 7:30 am
</pre>
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