Time Difference from Rio Branco to Major World Cities
Visual offset comparison between Rio Branco and key financial and international communication centers:
Drag the timeline scrubber to compare local hours across both locations:
America/Rio_Branco Timezone Specifications & DST Rules
About the ACST Abbreviation
ACST stands for America/Rio_Branco. It is observed across central and western Africa at UTC -05:00. Note: During seasonal Daylight Saving Time periods, the abbreviation shifts to ACDT (UTC -04:00).
Travel, Infrastructure & Business Essentials for Rio Branco
Essential practical information for international business travelers, digital nomads, and expats visiting Rio Branco:
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Related Cities in the Same Region & Timezone
Major commercial and administrative hubs in neighboring territories sharing direct regional links with Rio Branco:
Frequently Asked Questions about Rio Branco Time
What is the current local time and timezone in Rio Branco?
Rio Branco operates on America/Rio_Branco (abbreviated as ACST). The standard offset is UTC -05:00.
What does ACST timezone stand for?
ACST stands for America/Rio_Branco. It is 1 hour ahead of Greenwich Mean Time (GMT+1 / UTC+1).
Does Rio Branco change clocks for Daylight Saving Time (DST)?
Yes, Rio Branco observes Daylight Saving Time. Clocks move forward 1 hour in summer to ACDT (UTC -04:00) and return to standard time in winter.
What power plug and voltage adapter do I need for Rio Branco?
Brazil uses plug types N with a standard voltage of 127V at 60Hz.
How can I convert time or schedule calls with Rio Branco?
You can use the interactive 24-hour dual-slider converter directly on this page, or visit our Time Difference Tool and Meeting Planner to schedule seamless cross-timezone calls.