MetaTrader/MQL: 時刻情報を扱う (datetime, TimeLocal, TimeCurrent, TimeToString)

datetime now = TimeLocal();

string s1 = TimeToString(now, TIME_DATE);     // 2015.10.23
string s2 = TimeToString(now, TIME_MINUTES);  // 21:00
string s3 = TimeToString(now, TIME_SECONDS);  // 21:00:00
string s4 = TimeToString(now, TIME_DATE | TIME_MINUTES);  // 2015.10.23 21:00
string s5 = TimeToString(now, TIME_DATE | TIME_SECONDS);  // 2015.10.23 21:00:00

datetime serverTime = TimeCurrent();

string s1 = TimeToString(now, TIME_DATE);     // 2015.10.23
// ...