AST Timezone

17:02:27
Wednesday, May 20, 2026
AST • UTC-4

Press Space to toggle fullscreen • Esc to exit fullscreen

About Atlantic Standard Time (AST)

Atlantic Standard Time (AST) is UTC-4, used in Canada’s Atlantic provinces during winter. In summer the region observes Atlantic Daylight Time (ADT, UTC-3). This clock always shows AST (UTC-4).

Key Information:

  • Time Offset: UTC-4
  • Major Cities: Halifax, Saint John, Charlottetown

Usage Tips:

  • Use fullscreen mode for presentations or as a desk clock
  • Customize colors to match your workspace or preferences
  • This clock is fixed to AST (UTC-4) and does not shift for daylight saving time
  • Time updates every second for accurate timekeeping