Which term is the expansion for PST?

Which term is the expansion for PST?

• A. Pacific Day Time
• B. Pacific Standard Time Zone
• C. Pacific Standard Time
• D. Pacific Standard Timing

Answer: (C)

Pacific Standard Time is the correct expansion. PST is the standard time used in the Pacific region during the non-daylight-saving months, which is why the label ends with "Time." When daylight saving is in effect, that same area uses Pacific Daylight Time. The other forms aren’t used in official naming: "Pacific Day Time" isn’t a recognized designation, "Pacific Standard Time Zone" adds an extra word that isn’t part of the standard label, and "Pacific Standard Timing" uses a word that isn’t used in time zone names.

Pacific Standard Time is the correct expansion. PST is the standard time used in the Pacific region during the non-daylight-saving months, which is why the label ends with "Time." When daylight saving is in effect, that same area uses Pacific Daylight Time.

The other forms aren’t used in official naming: "Pacific Day Time" isn’t a recognized designation, "Pacific Standard Time Zone" adds an extra word that isn’t part of the standard label, and "Pacific Standard Timing" uses a word that isn’t used in time zone names.