timeZoneSelect

def timeZoneSelect = {attrs ->
        attrs['from'] = TimeZone.getAvailableIDs();
        attrs['value'] = (attrs['value'] ? attrs['value'].ID : TimeZone.getDefault().ID)
        def date = new Date()
        // set the option value as a closure that formats the TimeZone for display
        attrs['optionValue'] = {
            TimeZone tz = TimeZone.getTimeZone(it);
            def shortName = tz.getDisplayName(tz.inDaylightTime(date), TimeZone.SHORT);
            def longName = tz.getDisplayName(tz.inDaylightTime(date), TimeZone.LONG);
            def offset = tz.rawOffset;
            def hour = offset / (60 * 60 * 1000);
            def min = Math.abs(offset / (60 * 1000)) % 60;
            return "${shortName}, ${longName} ${hour}:${min}"
        }
        // use generic select
        out << select(attrs)
    }