在android中获取时区

TimeZone timeZone = TimeZone.getDefault();

TimeZone timeZone = TimeZone.getTimeZone("Asia/Shanghai");

String[] timeZoneIds = TimeZone.getAvailableIDs();

int offset = timeZone.getOffset(System.currentTimeMillis());

int hours = offset / 1000 / 60 / 60;
int minutes = (offset / 1000 / 60) % 60;

Calendar calendar = Calendar.getInstance(timeZone);