The best replacement for pst is est.

The best alternatives to pst are rated as following:
★★★★★  est
★★★★  pdt
★★★  cst
★★★  ost
★★  mst
★★  gmt
★  central time
★  pt
★  utc
★  ist
★  pdt time
★  est time
★  ct
★  pdt right now
★  cst time
  edt
  psd
  cet
  hst
  est difference
  ost outlook
  gst
  gst chanel
  est time difference
  cdt
  mountain time
  mst time
  ost file outlook
  hawaii time
  csts
  pdt now
  et
  msu
  dst
  tbt
  rsd
  uk time
  eastern time
  london time
  archive
  arizona time
  eastern standard time
  mst time zones
  central time zone
  germany time
  bst
  gmt time

Your alternative for pst is not listed? Suggest!
Speaking about pst, one probably shouldn't forget about gmt.

Other search terms related to pst and their ratings are:
★★★★★ gmt
★★★★ ist
★★★ outlook
★★★ earlier versions of outlook
★★ opening outlook
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Google Trends

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est
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