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XBDateTime.cpp
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XBDateTime.cpp
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/*
* Copyright (C) 2005-2013 Team XBMC
* http://xbmc.org
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with XBMC; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include "XBDateTime.h"
#include "LangInfo.h"
#include "guilib/LocalizeStrings.h"
#include "utils/log.h"
#include "utils/StringUtils.h"
#include "utils/Archive.h"
#ifdef TARGET_POSIX
#include "XTimeUtils.h"
#include "XFileUtils.h"
#else
#include <Windows.h>
#endif
#define SECONDS_PER_DAY 86400UL
#define SECONDS_PER_HOUR 3600UL
#define SECONDS_PER_MINUTE 60UL
#define SECONDS_TO_FILETIME 10000000UL
static const char *DAY_NAMES[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
static const char *MONTH_NAMES[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
/////////////////////////////////////////////////
//
// CDateTimeSpan
//
CDateTimeSpan::CDateTimeSpan()
{
m_timeSpan.dwHighDateTime=0;
m_timeSpan.dwLowDateTime=0;
}
CDateTimeSpan::CDateTimeSpan(const CDateTimeSpan& span)
{
m_timeSpan.dwHighDateTime=span.m_timeSpan.dwHighDateTime;
m_timeSpan.dwLowDateTime=span.m_timeSpan.dwLowDateTime;
}
CDateTimeSpan::CDateTimeSpan(int day, int hour, int minute, int second)
{
SetDateTimeSpan(day, hour, minute, second);
}
bool CDateTimeSpan::operator >(const CDateTimeSpan& right) const
{
return CompareFileTime(&m_timeSpan, &right.m_timeSpan)>0;
}
bool CDateTimeSpan::operator >=(const CDateTimeSpan& right) const
{
return operator >(right) || operator ==(right);
}
bool CDateTimeSpan::operator <(const CDateTimeSpan& right) const
{
return CompareFileTime(&m_timeSpan, &right.m_timeSpan)<0;
}
bool CDateTimeSpan::operator <=(const CDateTimeSpan& right) const
{
return operator <(right) || operator ==(right);
}
bool CDateTimeSpan::operator ==(const CDateTimeSpan& right) const
{
return CompareFileTime(&m_timeSpan, &right.m_timeSpan)==0;
}
bool CDateTimeSpan::operator !=(const CDateTimeSpan& right) const
{
return !operator ==(right);
}
CDateTimeSpan CDateTimeSpan::operator +(const CDateTimeSpan& right) const
{
CDateTimeSpan left(*this);
ULARGE_INTEGER timeLeft;
left.ToULargeInt(timeLeft);
ULARGE_INTEGER timeRight;
right.ToULargeInt(timeRight);
timeLeft.QuadPart+=timeRight.QuadPart;
left.FromULargeInt(timeLeft);
return left;
}
CDateTimeSpan CDateTimeSpan::operator -(const CDateTimeSpan& right) const
{
CDateTimeSpan left(*this);
ULARGE_INTEGER timeLeft;
left.ToULargeInt(timeLeft);
ULARGE_INTEGER timeRight;
right.ToULargeInt(timeRight);
timeLeft.QuadPart-=timeRight.QuadPart;
left.FromULargeInt(timeLeft);
return left;
}
const CDateTimeSpan& CDateTimeSpan::operator +=(const CDateTimeSpan& right)
{
ULARGE_INTEGER timeThis;
ToULargeInt(timeThis);
ULARGE_INTEGER timeRight;
right.ToULargeInt(timeRight);
timeThis.QuadPart+=timeRight.QuadPart;
FromULargeInt(timeThis);
return *this;
}
const CDateTimeSpan& CDateTimeSpan::operator -=(const CDateTimeSpan& right)
{
ULARGE_INTEGER timeThis;
ToULargeInt(timeThis);
ULARGE_INTEGER timeRight;
right.ToULargeInt(timeRight);
timeThis.QuadPart-=timeRight.QuadPart;
FromULargeInt(timeThis);
return *this;
}
void CDateTimeSpan::ToULargeInt(ULARGE_INTEGER& time) const
{
time.u.HighPart=m_timeSpan.dwHighDateTime;
time.u.LowPart=m_timeSpan.dwLowDateTime;
}
void CDateTimeSpan::FromULargeInt(const ULARGE_INTEGER& time)
{
m_timeSpan.dwHighDateTime=time.u.HighPart;
m_timeSpan.dwLowDateTime=time.u.LowPart;
}
void CDateTimeSpan::SetDateTimeSpan(int day, int hour, int minute, int second)
{
ULARGE_INTEGER time;
ToULargeInt(time);
time.QuadPart=(LONGLONG)day*SECONDS_PER_DAY*SECONDS_TO_FILETIME;
time.QuadPart+=(LONGLONG)hour*SECONDS_PER_HOUR*SECONDS_TO_FILETIME;
time.QuadPart+=(LONGLONG)minute*SECONDS_PER_MINUTE*SECONDS_TO_FILETIME;
time.QuadPart+=(LONGLONG)second*SECONDS_TO_FILETIME;
FromULargeInt(time);
}
void CDateTimeSpan::SetFromTimeString(const std::string& time) // hh:mm
{
if (time.size() >= 5 && time[2] == ':')
{
int hour = atoi(time.substr(0, 2).c_str());
int minutes = atoi(time.substr(3, 2).c_str());
SetDateTimeSpan(0,hour,minutes,0);
}
}
int CDateTimeSpan::GetDays() const
{
ULARGE_INTEGER time;
ToULargeInt(time);
return (int)(time.QuadPart/SECONDS_TO_FILETIME)/SECONDS_PER_DAY;
}
int CDateTimeSpan::GetHours() const
{
ULARGE_INTEGER time;
ToULargeInt(time);
return (int)((time.QuadPart/SECONDS_TO_FILETIME)%SECONDS_PER_DAY)/SECONDS_PER_HOUR;
}
int CDateTimeSpan::GetMinutes() const
{
ULARGE_INTEGER time;
ToULargeInt(time);
return (int)((time.QuadPart/SECONDS_TO_FILETIME%SECONDS_PER_DAY)%SECONDS_PER_HOUR)/SECONDS_PER_MINUTE;
}
int CDateTimeSpan::GetSeconds() const
{
ULARGE_INTEGER time;
ToULargeInt(time);
return (int)(((time.QuadPart/SECONDS_TO_FILETIME%SECONDS_PER_DAY)%SECONDS_PER_HOUR)%SECONDS_PER_MINUTE)%SECONDS_PER_MINUTE;
}
int CDateTimeSpan::GetSecondsTotal() const
{
ULARGE_INTEGER time;
ToULargeInt(time);
return (int)(time.QuadPart/SECONDS_TO_FILETIME);
}
void CDateTimeSpan::SetFromPeriod(const std::string &period)
{
long days = atoi(period.c_str());
// find the first non-space and non-number
size_t pos = period.find_first_not_of("0123456789 ", 0);
if (pos != std::string::npos)
{
std::string units = period.substr(pos, 3);
if (StringUtils::EqualsNoCase(units, "wee"))
days *= 7;
else if (StringUtils::EqualsNoCase(units, "mon"))
days *= 31;
}
SetDateTimeSpan(days, 0, 0, 0);
}
/////////////////////////////////////////////////
//
// CDateTime
//
CDateTime::CDateTime()
{
Reset();
}
CDateTime::CDateTime(const SYSTEMTIME &time)
{
// we store internally as a FILETIME
m_state = ToFileTime(time, m_time) ? valid : invalid;
}
CDateTime::CDateTime(const FILETIME &time)
{
m_time=time;
SetValid(true);
}
CDateTime::CDateTime(const CDateTime& time)
{
m_time=time.m_time;
m_state=time.m_state;
}
CDateTime::CDateTime(const time_t& time)
{
m_state = ToFileTime(time, m_time) ? valid : invalid;
}
CDateTime::CDateTime(const tm& time)
{
m_state = ToFileTime(time, m_time) ? valid : invalid;
}
CDateTime::CDateTime(int year, int month, int day, int hour, int minute, int second)
{
SetDateTime(year, month, day, hour, minute, second);
}
CDateTime CDateTime::GetCurrentDateTime()
{
// get the current time
SYSTEMTIME time;
GetLocalTime(&time);
return CDateTime(time);
}
CDateTime CDateTime::GetUTCDateTime()
{
CDateTime time(GetCurrentDateTime());
time += GetTimezoneBias();
return time;
}
const CDateTime& CDateTime::operator =(const SYSTEMTIME& right)
{
m_state = ToFileTime(right, m_time) ? valid : invalid;
return *this;
}
const CDateTime& CDateTime::operator =(const FILETIME& right)
{
m_time=right;
SetValid(true);
return *this;
}
const CDateTime& CDateTime::operator =(const time_t& right)
{
m_state = ToFileTime(right, m_time) ? valid : invalid;
return *this;
}
const CDateTime& CDateTime::operator =(const tm& right)
{
m_state = ToFileTime(right, m_time) ? valid : invalid;
return *this;
}
bool CDateTime::operator >(const CDateTime& right) const
{
return operator >(right.m_time);
}
bool CDateTime::operator >=(const CDateTime& right) const
{
return operator >(right) || operator ==(right);
}
bool CDateTime::operator <(const CDateTime& right) const
{
return operator <(right.m_time);
}
bool CDateTime::operator <=(const CDateTime& right) const
{
return operator <(right) || operator ==(right);
}
bool CDateTime::operator ==(const CDateTime& right) const
{
return operator ==(right.m_time);
}
bool CDateTime::operator !=(const CDateTime& right) const
{
return !operator ==(right);
}
bool CDateTime::operator >(const FILETIME& right) const
{
return CompareFileTime(&m_time, &right)>0;
}
bool CDateTime::operator >=(const FILETIME& right) const
{
return operator >(right) || operator ==(right);
}
bool CDateTime::operator <(const FILETIME& right) const
{
return CompareFileTime(&m_time, &right)<0;
}
bool CDateTime::operator <=(const FILETIME& right) const
{
return operator <(right) || operator ==(right);
}
bool CDateTime::operator ==(const FILETIME& right) const
{
return CompareFileTime(&m_time, &right)==0;
}
bool CDateTime::operator !=(const FILETIME& right) const
{
return !operator ==(right);
}
bool CDateTime::operator >(const SYSTEMTIME& right) const
{
FILETIME time;
ToFileTime(right, time);
return operator >(time);
}
bool CDateTime::operator >=(const SYSTEMTIME& right) const
{
return operator >(right) || operator ==(right);
}
bool CDateTime::operator <(const SYSTEMTIME& right) const
{
FILETIME time;
ToFileTime(right, time);
return operator <(time);
}
bool CDateTime::operator <=(const SYSTEMTIME& right) const
{
return operator <(right) || operator ==(right);
}
bool CDateTime::operator ==(const SYSTEMTIME& right) const
{
FILETIME time;
ToFileTime(right, time);
return operator ==(time);
}
bool CDateTime::operator !=(const SYSTEMTIME& right) const
{
return !operator ==(right);
}
bool CDateTime::operator >(const time_t& right) const
{
FILETIME time;
ToFileTime(right, time);
return operator >(time);
}
bool CDateTime::operator >=(const time_t& right) const
{
return operator >(right) || operator ==(right);
}
bool CDateTime::operator <(const time_t& right) const
{
FILETIME time;
ToFileTime(right, time);
return operator <(time);
}
bool CDateTime::operator <=(const time_t& right) const
{
return operator <(right) || operator ==(right);
}
bool CDateTime::operator ==(const time_t& right) const
{
FILETIME time;
ToFileTime(right, time);
return operator ==(time);
}
bool CDateTime::operator !=(const time_t& right) const
{
return !operator ==(right);
}
bool CDateTime::operator >(const tm& right) const
{
FILETIME time;
ToFileTime(right, time);
return operator >(time);
}
bool CDateTime::operator >=(const tm& right) const
{
return operator >(right) || operator ==(right);
}
bool CDateTime::operator <(const tm& right) const
{
FILETIME time;
ToFileTime(right, time);
return operator <(time);
}
bool CDateTime::operator <=(const tm& right) const
{
return operator <(right) || operator ==(right);
}
bool CDateTime::operator ==(const tm& right) const
{
FILETIME time;
ToFileTime(right, time);
return operator ==(time);
}
bool CDateTime::operator !=(const tm& right) const
{
return !operator ==(right);
}
CDateTime CDateTime::operator +(const CDateTimeSpan& right) const
{
CDateTime left(*this);
ULARGE_INTEGER timeLeft;
left.ToULargeInt(timeLeft);
ULARGE_INTEGER timeRight;
right.ToULargeInt(timeRight);
timeLeft.QuadPart+=timeRight.QuadPart;
left.FromULargeInt(timeLeft);
return left;
}
CDateTime CDateTime::operator -(const CDateTimeSpan& right) const
{
CDateTime left(*this);
ULARGE_INTEGER timeLeft;
left.ToULargeInt(timeLeft);
ULARGE_INTEGER timeRight;
right.ToULargeInt(timeRight);
timeLeft.QuadPart-=timeRight.QuadPart;
left.FromULargeInt(timeLeft);
return left;
}
const CDateTime& CDateTime::operator +=(const CDateTimeSpan& right)
{
ULARGE_INTEGER timeThis;
ToULargeInt(timeThis);
ULARGE_INTEGER timeRight;
right.ToULargeInt(timeRight);
timeThis.QuadPart+=timeRight.QuadPart;
FromULargeInt(timeThis);
return *this;
}
const CDateTime& CDateTime::operator -=(const CDateTimeSpan& right)
{
ULARGE_INTEGER timeThis;
ToULargeInt(timeThis);
ULARGE_INTEGER timeRight;
right.ToULargeInt(timeRight);
timeThis.QuadPart-=timeRight.QuadPart;
FromULargeInt(timeThis);
return *this;
}
CDateTimeSpan CDateTime::operator -(const CDateTime& right) const
{
CDateTimeSpan left;
ULARGE_INTEGER timeLeft;
left.ToULargeInt(timeLeft);
ULARGE_INTEGER timeThis;
ToULargeInt(timeThis);
ULARGE_INTEGER timeRight;
right.ToULargeInt(timeRight);
timeLeft.QuadPart=timeThis.QuadPart-timeRight.QuadPart;
left.FromULargeInt(timeLeft);
return left;
}
CDateTime::operator FILETIME() const
{
return m_time;
}
void CDateTime::Archive(CArchive& ar)
{
if (ar.IsStoring())
{
ar<<(int)m_state;
if (m_state==valid)
{
SYSTEMTIME st;
GetAsSystemTime(st);
ar<<st;
}
}
else
{
Reset();
int state;
ar >> (int &)state;
m_state = CDateTime::STATE(state);
if (m_state==valid)
{
SYSTEMTIME st;
ar>>st;
ToFileTime(st, m_time);
}
}
}
void CDateTime::Reset()
{
SetDateTime(1601, 1, 1, 0, 0, 0);
SetValid(false);
}
void CDateTime::SetValid(bool yesNo)
{
m_state=yesNo ? valid : invalid;
}
bool CDateTime::IsValid() const
{
return m_state==valid;
}
bool CDateTime::ToFileTime(const SYSTEMTIME& time, FILETIME& fileTime) const
{
return SystemTimeToFileTime(&time, &fileTime) == TRUE &&
(fileTime.dwLowDateTime > 0 || fileTime.dwHighDateTime > 0);
}
bool CDateTime::ToFileTime(const time_t& time, FILETIME& fileTime) const
{
LONGLONG ll = Int32x32To64(time, 10000000)+0x19DB1DED53E8000LL;
fileTime.dwLowDateTime = (DWORD)(ll & 0xFFFFFFFF);
fileTime.dwHighDateTime = (DWORD)(ll >> 32);
return true;
}
bool CDateTime::ToFileTime(const tm& time, FILETIME& fileTime) const
{
SYSTEMTIME st;
ZeroMemory(&st, sizeof(SYSTEMTIME));
st.wYear=time.tm_year+1900;
st.wMonth=time.tm_mon+1;
st.wDayOfWeek=time.tm_wday;
st.wDay=time.tm_mday;
st.wHour=time.tm_hour;
st.wMinute=time.tm_min;
st.wSecond=time.tm_sec;
return SystemTimeToFileTime(&st, &fileTime)==TRUE;
}
void CDateTime::ToULargeInt(ULARGE_INTEGER& time) const
{
time.u.HighPart=m_time.dwHighDateTime;
time.u.LowPart=m_time.dwLowDateTime;
}
void CDateTime::FromULargeInt(const ULARGE_INTEGER& time)
{
m_time.dwHighDateTime=time.u.HighPart;
m_time.dwLowDateTime=time.u.LowPart;
}
bool CDateTime::SetFromDateString(const std::string &date)
{
/* TODO:STRING_CLEANUP */
if (date.empty())
{
SetValid(false);
return false;
}
if (SetFromDBDate(date))
return true;
const char* months[] = {"january","february","march","april","may","june","july","august","september","october","november","december",NULL};
int j=0;
size_t iDayPos = date.find("day");
size_t iPos = date.find(' ');
if (iDayPos < iPos && iDayPos != std::string::npos)
{
iDayPos = iPos + 1;
iPos = date.find(' ', iPos+1);
}
else
iDayPos = 0;
std::string strMonth = date.substr(iDayPos, iPos - iDayPos);
if (strMonth.empty())
return false;
size_t iPos2 = date.find(",");
std::string strDay = (date.size() >= iPos) ? date.substr(iPos, iPos2-iPos) : "";
std::string strYear = date.substr(date.find(' ', iPos2) + 1);
while (months[j] && stricmp(strMonth.c_str(),months[j]) != 0)
j++;
if (!months[j])
return false;
return SetDateTime(atol(strYear.c_str()),j+1,atol(strDay.c_str()),0,0,0);
}
int CDateTime::GetDay() const
{
SYSTEMTIME st;
GetAsSystemTime(st);
return st.wDay;
}
int CDateTime::GetMonth() const
{
SYSTEMTIME st;
GetAsSystemTime(st);
return st.wMonth;
}
int CDateTime::GetYear() const
{
SYSTEMTIME st;
GetAsSystemTime(st);
return st.wYear;
}
int CDateTime::GetHour() const
{
SYSTEMTIME st;
GetAsSystemTime(st);
return st.wHour;
}
int CDateTime::GetMinute() const
{
SYSTEMTIME st;
GetAsSystemTime(st);
return st.wMinute;
}
int CDateTime::GetSecond() const
{
SYSTEMTIME st;
GetAsSystemTime(st);
return st.wSecond;
}
int CDateTime::GetDayOfWeek() const
{
SYSTEMTIME st;
GetAsSystemTime(st);
return st.wDayOfWeek;
}
int CDateTime::GetMinuteOfDay() const
{
SYSTEMTIME st;
GetAsSystemTime(st);
return st.wHour*60+st.wMinute;
}
bool CDateTime::SetDateTime(int year, int month, int day, int hour, int minute, int second)
{
SYSTEMTIME st;
ZeroMemory(&st, sizeof(SYSTEMTIME));
st.wYear=year;
st.wMonth=month;
st.wDay=day;
st.wHour=hour;
st.wMinute=minute;
st.wSecond=second;
m_state = ToFileTime(st, m_time) ? valid : invalid;
return m_state == valid;
}
bool CDateTime::SetDate(int year, int month, int day)
{
return SetDateTime(year, month, day, 0, 0, 0);
}
bool CDateTime::SetTime(int hour, int minute, int second)
{
// 01.01.1601 00:00:00 is 0 as filetime
return SetDateTime(1601, 1, 1, hour, minute, second);
}
void CDateTime::GetAsSystemTime(SYSTEMTIME& time) const
{
FileTimeToSystemTime(&m_time, &time);
}
#define UNIX_BASE_TIME 116444736000000000LL /* nanoseconds since epoch */
void CDateTime::GetAsTime(time_t& time) const
{
LONGLONG ll;
ll = ((LONGLONG)m_time.dwHighDateTime << 32) + m_time.dwLowDateTime;
time=(time_t)((ll - UNIX_BASE_TIME) / 10000000);
}
void CDateTime::GetAsTm(tm& time) const
{
SYSTEMTIME st;
GetAsSystemTime(st);
time.tm_year=st.wYear-1900;
time.tm_mon=st.wMonth-1;
time.tm_wday=st.wDayOfWeek;
time.tm_mday=st.wDay;
time.tm_hour=st.wHour;
time.tm_min=st.wMinute;
time.tm_sec=st.wSecond;
mktime(&time);
}
void CDateTime::GetAsTimeStamp(FILETIME& time) const
{
::LocalFileTimeToFileTime(&m_time, &time);
}
std::string CDateTime::GetAsDBDate() const
{
SYSTEMTIME st;
GetAsSystemTime(st);
return StringUtils::Format("%04i-%02i-%02i", st.wYear, st.wMonth, st.wDay);
}
std::string CDateTime::GetAsDBDateTime() const
{
SYSTEMTIME st;
GetAsSystemTime(st);
return StringUtils::Format("%04i-%02i-%02i %02i:%02i:%02i", st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond);
}
std::string CDateTime::GetAsSaveString() const
{
SYSTEMTIME st;
GetAsSystemTime(st);
return StringUtils::Format("%04i%02i%02i_%02i%02i%02i", st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond);;
}
bool CDateTime::SetFromUTCDateTime(const CDateTime &dateTime)
{
CDateTime tmp(dateTime);
tmp -= GetTimezoneBias();
m_time = tmp.m_time;
m_state = tmp.m_state;
return m_state == valid;
}
static bool bGotTimezoneBias = false;
void CDateTime::ResetTimezoneBias(void)
{
bGotTimezoneBias = false;
}
CDateTimeSpan CDateTime::GetTimezoneBias(void)
{
static CDateTimeSpan timezoneBias;
if (!bGotTimezoneBias)
{
bGotTimezoneBias = true;
TIME_ZONE_INFORMATION tz;
switch(GetTimeZoneInformation(&tz))
{
case TIME_ZONE_ID_DAYLIGHT:
timezoneBias = CDateTimeSpan(0, 0, tz.Bias + tz.DaylightBias, 0);
break;
case TIME_ZONE_ID_STANDARD:
timezoneBias = CDateTimeSpan(0, 0, tz.Bias + tz.StandardBias, 0);
break;
case TIME_ZONE_ID_UNKNOWN:
timezoneBias = CDateTimeSpan(0, 0, tz.Bias, 0);
break;
}
}
return timezoneBias;
}
bool CDateTime::SetFromUTCDateTime(const time_t &dateTime)
{
CDateTime tmp(dateTime);
return SetFromUTCDateTime(tmp);
}
bool CDateTime::SetFromW3CDate(const std::string &dateTime)
{
std::string date;
size_t posT = dateTime.find("T");
if(posT != std::string::npos)
date = dateTime.substr(0, posT);
else
date = dateTime;
int year = 0, month = 1, day = 1;
if (date.size() >= 4)
year = atoi(date.substr(0, 4).c_str());
if (date.size() >= 10)
{
month = atoi(date.substr(5, 2).c_str());
day = atoi(date.substr(8, 2).c_str());
}
CDateTime tmpDateTime(year, month, day, 0, 0, 0);
if (tmpDateTime.IsValid())
*this = tmpDateTime;
return IsValid();
}
bool CDateTime::SetFromW3CDateTime(const std::string &dateTime, bool ignoreTimezone /* = false */)
{
std::string date, time, zone;
size_t posT = dateTime.find("T");
if(posT != std::string::npos)
{
date = dateTime.substr(0, posT);
std::string::size_type posZ = dateTime.find_first_of("+-Z", posT);
if(posZ == std::string::npos)
time = dateTime.substr(posT + 1);
else
{
time = dateTime.substr(posT + 1, posZ - posT - 1);
zone = dateTime.substr(posZ);
}
}
else
date = dateTime;
int year = 0, month = 1, day = 1, hour = 0, min = 0, sec = 0;
if (date.size() >= 4)
year = atoi(date.substr(0, 4).c_str());
if (date.size() >= 10)
{
month = atoi(date.substr(5, 2).c_str());
day = atoi(date.substr(8, 2).c_str());
}
if (time.length() >= 5)
{
hour = atoi(time.substr(0, 2).c_str());
min = atoi(time.substr(3, 2).c_str());
}
if (time.length() >= 8)
sec = atoi(time.substr(6, 2).c_str());
CDateTime tmpDateTime(year, month, day, hour, min, sec);
if (!tmpDateTime.IsValid())
return false;
if (!ignoreTimezone && !zone.empty())
{
// check if the timezone is UTC