frappe.utils.dateutils.datetime_in_user_format (date_time)
No docs
frappe.utils.dateutils.get_user_date_format ()
No docs
frappe.utils.dateutils.parse_date (date)
tries to parse given date to system's format i.e. yyyy-mm-dd. returns a string
frappe.utils.dateutils.user_to_str (date, date_format=None)
No docs