Quarter to Twelve

Time in Lanzhou and Boston

The time difference between Lanzhou and Boston, Massachusetts, is 12 hours. Boston is 12 hours behind Lanzhou.

This means 9am in Lanzhou is 9pm in Boston (previous day) and 5pm in Lanzhou is 5am in Boston.

Lanzhou

  • The current local time in Lanzhou is 3:57 am (June 22, 2026)
  • Lanzhou is in the China Standard Time Zone
  • The time zone offset for Lanzhou, China, is UTC+08:00

Boston

  • The current local time in Boston is 3:57 pm (June 21, 2026)
  • Boston is in the Eastern Daylight Time Zone
  • The time zone offset for Boston, United States, is UTC-04:00

How to convert Lanzhou time to Boston time?

Subtract 12 hours from Lanzhou time to get Boston time.

Time in Lanzhou

00:00

Time in Boston

00:00

Use the slider above to convert Lanzhou time to Boston time and view the day and night map at different times.

Day–night colors on the map:
Day colors Day
Civil twilight colors Civil twilight
Nautical twilight colors Nautical twilight
Astronomical twilight colors Astronomical twilight
Night colors Night

Time Conversion Chart

LanzhouBoston
12am12pm
1am1pm
2am2pm
3am3pm
4am4pm
5am5pm
6am6pm
7am7pm
8am8pm
9am9pm
10am10pm
11am11pm
12pm12am
1pm1am
2pm2am
3pm3am
4pm4am
5pm5am
6pm6am
7pm7am
8pm8am
9pm9am
10pm10am
11pm11am