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Brasília Time · BRT · UTC−3

Claude Code Peak Hours in Brasília Time (BRT)

When Claude Code is busiest in Brasília Time (São Paulo, Rio de Janeiro, Buenos Aires), and when to work so your limits go further. The heatmap below is already converted to BRT (UTC−3) and updates live.

Claude Code heatmap in Brasília Time

Messages you send to Claude — the closest measure of load.

Claude Code activity by weekday and hour (Brasília Time · BRT · UTC−3)
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Brasília Time · BRT · UTC−3 · All time

Peak and quiet hours in Brasília Time

  • Weekday peak5 PM–8 PM
  • Quietest hours11 PM–2 AM
  • Busiest dayWednesday
  • Quietest daySunday
  • Weekend share9%

Based on community data (1,324 messages), 3-hour windows, in Brasília Time.

Incidents per Anthropic’s status page

  • Most incidents10 AM–1 PM
  • Fewest incidents11 PM–2 AM
  • Most incident-prone dayThursday

171 incident hours with an open incident for Claude, the API or Claude Code, in Brasília Time. Source: status.claude.com, synced hourly.

Anthropic’s stated peak window

9 AM–3 PM

Weekdays, 5–11 AM Pacific, shown in Brasília Time. In March 2026 Anthropic said 5-hour limits drain faster during these hours; on May 6, 2026 that reduction was removed for Claude Code on Pro and Max, but it remains the busiest part of the day.

Planning your day

The global weekday peak is 9 AM–3 PM in Brasília Time. In Brasília Time that window lands almost entirely inside your working day. It is when North American mornings overlap with the European afternoon, so slow responses and overloaded errors are most likely then.

  • Long agent runs (refactors, migrations, test generation): start them before 9 AM or after 3 PM.
  • During the peak, favour short loops — reviews, small edits, questions about code — where a little latency hurts less.
  • Weekends are noticeably calmer than weekdays in every time zone.
  • If Claude is slow anyway, check the current load and the official status page.

Times account for the current daylight-saving state and are recalculated every time the site rebuilds.

Other time zones