How can I add PDT to the Date&Time panel

How can I add PDT to the Date&Time panel pdt What does the abbreviation PDT stand for? Meaning: Pacific daylight time pdt Convert PDT to PST and find out the time difference between the two time zones What is the time difference between PDT and PST?

pdt Country: USACanadaMexico ; Time zone abbreviation: PDT ; Time zone name: Pacific Daylight Time ; Time offset: UTCGMT-07:00

pdt Time conversion from Pacific Daylight Time PDT time zones converter, calculator, table and map  What does the abbreviation PDT stand for? Meaning: Pacific daylight time