“Claude usage limit reached. Your limit will reset at 4pm (Asia/Shanghai).”

What it means

Claude Code's 5-hour session window is full. The time shown is when your window opened plus five hours.

When it resets

5 hours after the first prompt of the session; weekly caps reset 7 days after their start.

What to do now

1. Run /usage to see session and weekly bars.
2. Switch to Sonnet with /model if Opus is what ran out.
3. Turn off extended thinking for routine edits.