Convert CLDR DateTime format to PHP formats
http://nielsdefeyter.nl/CLDR-2-PHP-converter/
https://github.com/nielsdefeyter/CLDR-2-PHP-converter http://cldr.unicode.org/ http://cldr.unicode.org/index/downloads/cldr-26-0-1 http://en.wikipedia.org/wiki/Date_format_by_country http://userguide.icu-project.org/formatparse/datetime
// Era is not implemented. "GGGGG": fallback_replacement, "GGGG": fallback_replacement, "GGG": fallback_replacement, "GG": fallback_replacement, "G": fallback_replacement, // Year. "yyyy": "Y", // 1999 "yy": "y", // 99 "y": "Y", // 1999 // Month. "MMMM": "F", "MMM": "M", "MM": "m", "M": "m", // Day. "dd": "d", "d": "j", // Day of week. "EEEEEE": fallback_replacement, // Tu "EEEEE": fallback_replacement, // T "EEEE": "l", // Tuesday "EEE": "D", // Tue "EE": "D", // Tue "E": "D", // Tue // Am/PM "a": "a", // hours "HH": "H", // 24-hour format of an hour with leading zeros "H": "G", // 24-hour format of an hour without leading zeros "h": "h", // 12-hour format of an hour with leading zeros "K": "g", // 12-hour format of an hour without leading zero // minutes "mm": "i", // Minutes with leading zeros "ss": "s", // Seconds, with leading zeros // timezone. "z": "T", // Timezone abbreviation "zz": "T", // Timezone abbreviation "zzz": "T", // Timezone abbreviation "zzzz": "e", // Timezone