Best time to leave — Diamond Harbour Road

Hour-by-hour average speeds and travel times across this Kolkata corridor, measured from real road data.

Route measured in partnership with Kolkata Traffic Police. Free-flow reference: 27 km/h.

Fastest hour

4–5 AM

29.2 km/h · 3 min travel

Slowest hour

7–8 PM

17.7 km/h · 5 min travel

Peak slowdown

34%

Slower than free-flow

Speed by hour of day (IST)

01234567891011121314151617181920212223

Fastest hour Slowest hour Other hours Bar height = % of free-flow speed

Hour (IST)	Avg speed	Travel time	vs free-flow
12–1 AM	24.4 km/h	4 min 37s	−10%
1–2 AM	26 km/h	3 min 27s	−4%
2–3 AM	26.9 km/h	3 min 22s	+0%
3–4 AM	28.2 km/h	3 min 9s	+4%
4–5 AM	29.2 km/h	3 min 2s	+8%
5–6 AM	29.2 km/h	3 min 2s	+8%
6–7 AM	26.8 km/h	3 min 18s	−1%
7–8 AM	23.7 km/h	4 min 46s	−12%
8–9 AM	21.4 km/h	4 min 9s	−21%
9–10 AM	20.2 km/h	4 min 20s	−25%
10–11 AM	19.4 km/h	5 min 31s	−28%
11 AM – 12 PM	19.4 km/h	5 min 37s	−28%
12–1 PM	19.5 km/h	5 min 35s	−28%
1–2 PM	20.2 km/h	4 min 19s	−25%
2–3 PM	20.8 km/h	4 min 14s	−23%
3–4 PM	21.5 km/h	4 min 0s	−20%
4–5 PM	21.4 km/h	4 min 3s	−21%
5–6 PM	20 km/h	4 min 26s	−26%
6–7 PM	18.7 km/h	5 min 48s	−31%
7–8 PM	17.7 km/h	5 min 6s	−34%
8–9 PM	19 km/h	5 min 44s	−30%
9–10 PM	21.1 km/h	4 min 8s	−22%
10–11 PM	20.9 km/h	4 min 9s	−23%
11 PM – 12 AM	22.7 km/h	4 min 51s	−16%

Pune route timing → See another route on the Pune tool — same hour-by-hour data for 117 corridors. Try another route → Search any Kolkata origin and destination for a custom speed chart.

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