Scale: London, UK Time → Pacific Daylight Time Conversion Chart ( Reverse the chart below ) 0:00 AM (0:00) London Time = 4:00 PM (16:00) Previous Day PDT 0:30 AM (0:30) London Time = 4:30 PM (16:30) Previous Day PDT. Convert Large OST to PST | Convert Encrypted OST to PST | Convert Corrupt OST to PST File. Free Download The OST To PST Converter Software To Open & Convert OST File To PST.