ast

IPA/ˌeɪ es ˈtiː/
KK[ˈæst]IPA/ˌeɪ es ˈtiː/

ast — abbreviation

1. the winter time zone for Atlantic Canada and some Caribbean places, set four hou

1.縮寫B2
釋義

the winter time zone for Atlantic Canada and some Caribbean places, set four hours behind UTC

例句

The weather alert stays in effect until 6:00 a.m. AST in Halifax.

clock time followed by AST

Our call with San Juan begins at 8 p.m. AST on Tuesday.

同義詞
  • Atlantic Standard Time

    the full form, used when the abbreviation may be unclear

  • UTC-4

    shows the same offset, but it does not name the Atlantic region or the seasonal label

文法句型

6:00 a.m. AST

switch to AST

meeting starts at + time + AST

用法筆記

Usually written after a clock time in timetables, weather notices, and travel updates. It names the winter time zone; many of the same places switch to ADT in summer.

常見錯誤

❌The call starts at 9 p.m. in AST time.
✅The call starts at 9 p.m. AST.
💡AST already names the time zone, so adding 'time' is unnecessary.
❌Halifax is on AST in July.
✅Halifax is usually on ADT in July.
💡many Atlantic places use daylight time in summer, not AST.