ClockAlign

Timezone answer

Best Meeting Time: Chennai & Johannesburg

Chennai is currently 3 hours 30 minutes ahead of Johannesburg (this can shift with daylight saving time). Working hours (9am–6pm) overlap from 12:30 PM to 6 PM Chennai time. ClockAlign ranks the slots inside that window by when both sides are cognitively sharp, not just awake.

🇮🇳 Chennai, India
GMT+5:30 · Asia/Kolkata
🇿🇦 Johannesburg, South Africa
GMT+2 · Africa/Johannesburg

Use the interactive finder below to compare local times, golden windows, and sacrifice scores for this city pair. Timezone offsets use current daylight-saving rules, so always confirm the final date before sending calendar invites.

Sources: IANA Time Zone Database · CDC/NIOSH fatigue and work guidance

Free Golden Window finder

When is everyone actually sharp?

Add your team across time zones. ClockAlign maps each person’s energy through the day and finds the fairest, sharpest time to meet — not just when everyone’s awake.

Your team · 2 people
C
Chennai
🇮🇳Chennai · GMT+5:30
J
Johannesburg
🇿🇦Johannesburg · GMT+2
Team energy across the day · times in UTC
AsleepGroggyAwakeGolden
00:0006:0012:0018:0024:00
Chennai3:30 PM GMT+5:30
Johannesburg12:00 PM GMT+2
10:00 UTC
Drag anywhere on the timeline to test a meeting time · the glow marks the best window
Best times to meet
Selected time
10:00UTC
2Worst sacrifice
100%Fairness
2Teammates
CChennai3:30 PM GMT+5:30Sharp2
JJohannesburg12:00 PM GMT+2Golden2
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