The sequence of numbers is unix time (number of seconds since something like 1 Jan 1970, midnight). You can convert it using a script (have a look at the GT::Date module), there are also many online tools available, e.g. http://www.onlineconversion.com/unix_time.htm
Ivan
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Iyengar Yoga Resources / GT Plugins
Ivan
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Iyengar Yoga Resources / GT Plugins