Traffic Predict
Best Time to Drive from Simi Valley to Diamond Bar
Right now (6:49 pm PDT): about 75 minutes via I-210 East and SR-118 East, usually 70 at this time.
Only 27% 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
| Leave | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mon | 62 | 67 | 75 | 77 | 71 | 68 | 68 | 68 | 70 | 77 | 83 | 85 | 83 | 70 | 65 | 63 | 62 |
| Tue | 61 | 70 | 82 | 84 | 76 | 71 | 69 | 70 | 73 | 78 | 83 | 87 | 84 | 76 | 68 | 66 | 62 |
| Wed | 62 | 69 | 82 | 93 | 79 | 72 | 71 | 70 | 72 | 80 | 86 | 87 | 82 | 74 | 70 | 65 | 62 |
| Thu | 62 | 69 | 81 | 84 | 74 | 72 | 71 | 71 | 78 | 85 | 90 | 91 | 90 | 78 | 70 | 67 | 63 |
| Fri | 63 | 68 | 73 | 75 | 73 | 71 | 75 | 79 | 86 | 93 | 96 | 96 | 90 | 78 | 72 | 65 | 62 |
| Sat | 62 | 62 | 63 | 63 | 64 | 67 | 68 | 71 | 76 | 76 | 76 | 74 | 70 | 65 | 63 | 63 | 61 |
| Sun | 61 | 61 | 62 | 62 | 61 | 63 | 64 | 65 | 66 | 67 | 65 | 65 | 63 | 63 | 63 | 64 | 61 |
About this drive
On weekdays the 69-mile drive from Simi Valley to Diamond Bar (via I-210 East and SR-118 East) usually takes as little as 61 minutes and up to 98 minutes, when leaving around 2:30 pm on Fridays. The fastest times to leave are before 6 am or after 7:30 pm. Midday (11 am to 2 pm) it takes about 75 minutes. On weekends it is slowest around 2:30 pm on Saturdays (77 minutes).
About 68 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 0.9 miles surface streets (1 to 2 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Simi Valley 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 Simi Valley to Diamond Bar?
On weekdays, leave before 6 am or after 7:30 pm. The drive usually takes about 61 minutes then, versus up to 98 minutes at the worst times.
How long does it take to drive from Simi Valley to Diamond Bar?
The 69-mile drive usually takes 61 to 98 minutes on weekdays, depending on when you leave, and about 75 minutes midday.
When is traffic worst from Simi Valley to Diamond Bar?
Leaving around 2:30 pm on Fridays is usually slowest, about 98 minutes.
Freeways on this drive
I-210 East in Los Angeles (38 miles) · SR-118 East in Los Angeles (23 miles) · SR-57 South in Los Angeles (7 miles)
Los Angeles traffic right now · Los Angeles traffic tomorrow
More drives
Diamond Bar to Simi Valley (return trip) · Simi Valley to Los Angeles · Simi Valley to Santa Monica · Simi Valley to Pasadena · Simi Valley to Long Beach · Simi Valley to West Covina · Simi Valley to Burbank · Simi Valley to Glendale · Simi Valley to Santa Clarita · Simi Valley to Van Nuys · Simi Valley to Torrance · Simi Valley to LAX