Best way to convert time to differnt time zone?

[aximbigfan]

So I have these variables...

                $curtz // Timezone I want to convert to (example "-0600")

                $date['TZ'] // Timezone of the time I want to convert to $curtz (example "-0800")

$date['D'] // Day (example "8")

$date['M'] // Month (example "1")

$date['Y'] // Year (example "2009")

 

$date['H'] // Hour (example "23")

$date['Min'] // Minute (example "59")

$date['S']  //Second (example "59")

 

And I have this horrible code...

		if ($curtz!=$date['TZ'])
	{
		$direction = substr($date['TZ'], 0, 1);
		$hours     = substr($date['TZ'], 1, 2);

		if ($direction=='+')
		{
			$date['H'] = $date['H'] - $hours;
			if ($date['H']<0)
			{
				$date['H'] = $date['H'] + 23;
				$date['D']--;
			}
		}
		else
		{
			$date['H'] = $date['H'] + $hours;
			if ($date['H']>23)
			{
				$date['H'] = $date['H'] - 23;
				$date['D']++;
			}
		}

		$direction = substr($curtz, 0, 1);
		$hours     = substr($curtz, 1, 2);

		if ($direction=='+')
		{
			$date['H'] = $date['H'] + $hours;
			if ($date['H']>23)
			{
				$date['H'] = $date['H'] - 23;
				$date['D']++;
			}
		}
		else
		{
			$date['H'] = $date['H'] - $hours;
			if ($date['H']<0)
			{
				$date['H'] = $date['H'] + 23;
				$date['D']--;
			}
		}

		if ($date['D']>$this->months[$date['M']][1])
		{
			$date['M']++;
			if ($date['M']>12)
			{
				$date['M'] = 1;
				$date['Y']++;
			}
			$date['D'] = 1;
		}
		elseif ($date['D']<=0)
		{
			$date['M']--;
			if ($date['M']<=0)
			{
				$date['M'] = 12;
				$date['Y']--;
			}
			$date['D'] = $this->months[$date['M']][1];
		}
	}

 

Yes, I know, the above code is disgusting, and probably doesn't work right.

 

Can anyone give me some pointers on how to fix this, or a better way of converting times between timezones?

 

Thanks!

Chris

[Mardoxx]

doesn't php have a function to set time zone?