New York to San Mateo time converter

San Mateo is 3 hours behind New York. When it is 9:00 AM in New York, it is 6:00 AM in San Mateo.

New York EDT

Wednesday, October 21, 2026

San Mateo PDT

Wednesday, October 21, 2026

New York
United States
Wed, Oct 21
EDTUTC-4
San Mateo
California, United States
Wed, Oct 21
PDTUTC-7-3h
Finding your time zone…
Shared working hours (9:00–18:00)

New York to San Mateo conversion table

Every hour of today in New York and the matching time in San Mateo. Light rows are typical working hours (9:00–18:00).

New YorkSan Mateo
12:00 AM9:00 PM−1 day
1:00 AM10:00 PM−1 day
2:00 AM11:00 PM−1 day
3:00 AM12:00 AM
4:00 AM1:00 AM
5:00 AM2:00 AM
6:00 AM3:00 AM
7:00 AM4:00 AM
8:00 AM5:00 AM
9:00 AM6:00 AM
10:00 AM7:00 AM
11:00 AM8:00 AM
12:00 PM9:00 AM
1:00 PM10:00 AM
2:00 PM11:00 AM
3:00 PM12:00 PM
4:00 PM1:00 PM
5:00 PM2:00 PM
6:00 PM3:00 PM
7:00 PM4:00 PM
8:00 PM5:00 PM
9:00 PM6:00 PM
10:00 PM7:00 PM
11:00 PM8:00 PM

Best time to call or meet

Both sides are at work from 12:00 PM – 6:00 PM in New York (9:00 AM – 3:00 PM in San Mateo).

Daylight saving time and the difference

The difference changes during the year because New York and San Mateo switch clocks on different dates:

  • Oct 21, 2026 – Nov 1, 2026: -3h
  • Nov 1, 2026 – Nov 1, 2026: -2h
  • Nov 1, 2026 – Mar 14, 2027: -3h
  • Mar 14, 2027 – Mar 14, 2027: -4h
  • Mar 14, 2027 – Oct 21, 2027: -3h

Distance

New York and San Mateo are 4,129 km (2,566 miles) apart in a straight line.

More conversions

San Mateo to New YorkNew York to LondonNew York to Los AngelesNew York to ChicagoNew York to TorontoNew York to São PauloNew York to ParisNew York to BerlinNew York to MoscowNew York to DubaiNew York to New DelhiNew York to BangkokNew York to Singapore
London to San MateoLos Angeles to San MateoChicago to San MateoToronto to San MateoSão Paulo to San MateoParis to San MateoBerlin to San MateoMoscow to San MateoDubai to San MateoNew Delhi to San MateoBangkok to San MateoSingapore to San Mateo

Questions and answers

What is the time difference between New York and San Mateo?

San Mateo is 3 hours behind New York.

What time is it in San Mateo when it is 9 AM in New York?

When it is 9:00 AM in New York, it is 6:00 AM in San Mateo.

When is the best time to call San Mateo from New York?

Both sides are at work from 12:00 PM – 6:00 PM in New York (9:00 AM – 3:00 PM in San Mateo).

Does the time difference between New York and San Mateo change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.