Convert AST to -05 — Time Difference Between Atlantic Standard Time and Rio Branco

How to Convert AST to -05

Drag the slider on the AST timeline to pick your time — the -05 time updates instantly. You can also click the time display to type a specific hour or pick one from the 15-minute interval dropdown, and use the date picker to check a different day.

What Is the Time Difference Between AST and -05?

Rio Branco (-05) is 1 hour behind Atlantic Standard Time (AST). To convert, subtract 1 hour — for example, 9:00 AM AST is 8:00 AM -05.

AST to -05 Quick Reference

AST to -05 Meeting Planner

Use the color-coded table above to find overlapping work hours between San Juan and Rio Branco. Amber rows mark daytime hours — pick a slot that falls in amber on both sides for a meeting that works for everyone.

Why Trust This AST to -05 Converter?

Timezoney uses the IANA Time Zone Database — the same source that powers your phone and computer — so every conversion handles daylight saving transitions and half-hour offsets automatically.