Convert -05 to -04 — Time Difference Between Rio Branco and Boa Vista

How to Convert -05 to -04

Drag the slider on the -05 timeline to pick your time — the -04 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 -05 and -04?

Boa Vista (-04) is 1 hour ahead of Rio Branco (-05). To convert, add 1 hour — for example, 9:00 AM -05 is 10:00 AM -04.

-05 to -04 Quick Reference

-05 to -04 Meeting Planner

Use the color-coded table above to find overlapping work hours between Rio Branco and Boa Vista. 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 -05 to -04 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.