Best Time to Drive from Riverside to Diamond Bar

Right now (8:16 pm PST): about 30 minutes via SR-60 West, usually 30 at this time.

Only 43% of this drive is measured by working traffic sensors right now. The rest is estimated from nearby sensors, typical speeds and street traffic, so times can be off. Why so few sensors work.

Typical drive time by departure time

Minutes from Riverside to Diamond Bar by day and time you leave (local time)
Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	29	42	45	50	43	38	37	34	34	34	37	36	36	34	31	30	29
Tue	28	42	45	49	42	39	37	35	33	33	35	39	37	35	30	30	29
Wed	29	43	44	49	47	37	35	34	34	34	35	36	38	35	30	30	29
Thu	29	40	43	48	41	37	35	34	34	34	36	40	39	35	31	30	29
Fri	29	34	35	38	36	35	35	36	36	35	39	40	38	36	33	30	29
Sat	29	30	30	30	30	31	33	32	32	32	31	31	31	31	30	30	29
Sun	29	29	29	29	29	30	31	31	31	30	30	30	30	30	30	30	29

About this drive

On weekdays the 27-mile drive from Riverside to Diamond Bar (via SR-60 West) usually takes as little as 28 minutes and up to 52 minutes, when leaving around 8:30 am on Wednesdays. The fastest times to leave are before 5:30 am or after 7 pm. Midday (11 am to 2 pm) it takes about 34 minutes. On weekends it is slowest around 11 am on Saturdays (33 minutes).

About 17 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 10 miles surface streets (14 to 26 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Riverside to central Diamond Bar along the route on the map. Starting or ending elsewhere in a big city can add or save several minutes.

Simulated from typical freeway speeds at each point of the drive for the time you would reach it, from every 5-minute reading we have recorded. We don't have sensors on surface streets yet, so the time on them is estimated from how congested the freeways around each end of the drive are at that time, in both directions: streets jam when the freeways do.

Questions

What is the best time to drive from Riverside to Diamond Bar?

On weekdays, leave before 5:30 am or after 7 pm. The drive usually takes about 28 minutes then, versus up to 52 minutes at the worst times.

How long does it take to drive from Riverside to Diamond Bar?

The 27-mile drive usually takes 28 to 52 minutes on weekdays, depending on when you leave, and about 34 minutes midday.

When is traffic worst from Riverside to Diamond Bar?

Leaving around 8:30 am on Wednesdays is usually slowest, about 52 minutes.

Freeways on this drive

SR-60 West in Inland Empire (10 miles) · SR-60 West in Los Angeles (7 miles)

Inland Empire traffic right now · Inland Empire traffic tomorrow · Los Angeles traffic right now · Los Angeles traffic tomorrow

More drives

Diamond Bar to Riverside (return trip) · Riverside to Los Angeles · Riverside to Santa Monica · Riverside to Pasadena · Riverside to Long Beach · Riverside to West Covina · Riverside to Burbank · Riverside to Glendale · Riverside to Van Nuys · Riverside to Torrance · Riverside to LAX · Riverside to Hollywood

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	29	42	45	50	43	38	37	34	34	34	37	36	36	34	31	30	29
Tue	28	42	45	49	42	39	37	35	33	33	35	39	37	35	30	30	29
Wed	29	43	44	49	47	37	35	34	34	34	35	36	38	35	30	30	29
Thu	29	40	43	48	41	37	35	34	34	34	36	40	39	35	31	30	29
Fri	29	34	35	38	36	35	35	36	36	35	39	40	38	36	33	30	29
Sat	29	30	30	30	30	31	33	32	32	32	31	31	31	31	30	30	29
Sun	29	29	29	29	29	30	31	31	31	30	30	30	30	30	30	30	29

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	29	42	45	50	43	38	37	34	34	34	37	36	36	34	31	30	29
Tue	28	42	45	49	42	39	37	35	33	33	35	39	37	35	30	30	29
Wed	29	43	44	49	47	37	35	34	34	34	35	36	38	35	30	30	29
Thu	29	40	43	48	41	37	35	34	34	34	36	40	39	35	31	30	29
Fri	29	34	35	38	36	35	35	36	36	35	39	40	38	36	33	30	29
Sat	29	30	30	30	30	31	33	32	32	32	31	31	31	31	30	30	29
Sun	29	29	29	29	29	30	31	31	31	30	30	30	30	30	30	30	29

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	29	42	45	50	43	38	37	34	34	34	37	36	36	34	31	30	29
Tue	28	42	45	49	42	39	37	35	33	33	35	39	37	35	30	30	29
Wed	29	43	44	49	47	37	35	34	34	34	35	36	38	35	30	30	29
Thu	29	40	43	48	41	37	35	34	34	34	36	40	39	35	31	30	29
Fri	29	34	35	38	36	35	35	36	36	35	39	40	38	36	33	30	29
Sat	29	30	30	30	30	31	33	32	32	32	31	31	31	31	30	30	29
Sun	29	29	29	29	29	30	31	31	31	30	30	30	30	30	30	30	29