В каком формате передавать дату и время по сети?
Без разницы что, например
https://stackoverflow.com/questions/10286204/the-r...2012-04-23T18:25:43.511Z
Here's why:
    It's human readable but also succinct
    It sorts correctly
    It includes fractional seconds, which can help re-establish chronology
    It conforms to ISO 8601
    ISO 8601 has been well-established internationally for more than a decade
    ISO 8601 is endorsed by W3C, RFC3339, and XKCD
(Не дату, а данные!)
Любой формат.