It stands for united states postal service (usps).
The USPS does not deliver mail on Sundays, except for Express Mail.
Depends on which service you use. USPS Express mail: Overnight USPS Priority mail: 2 -3 business days USPS First Class Mail: 2-5 business days
It can take anywhere from a couple of days to several weeks. There are no guarantee's on priority mail during the holiday (USPS). The only guaranteed mail delivery is USPS Express Mail.
5 working days
3 to 5 days
International Express Mail Service
3- 5 Days
First Class Mail is delivered in three to five days.
The USPS does not mail from China, they have their own postal service. kurtdriverUSPS does ship via International Express USPS both from and to China; Priority Mail as well. I just verified this via their website. Delivery times are guaranteed within a timeframe and tracking is standard on Express.
Priority Mail Express generally is delivered the next business day.
USPS $60 Fed Ex $300
For USPS, expedited mail is the same as Express Mail and it is overnight delivery, the fastest available from USPS. For UPS, there are several options for next day delivery, which would be the same as expedited mail.