Mail is classified by the time it takes it to arrive to its destination. All mail starts with First Class, if a letter needs to arrive sooner Priority or Overnight classifications are used.
Pretty much
United States Postal Service can not guarentee standard mail to arrive by any specific time. It is estimated that standard mail will arrive 2-9 days. If you require letter to arrive earlier you can send it Priority Mail, which will arrive within 2 days in most cases.
It usually takes all mail at least 6 days to arrive.
a long time
If you worked long enough for Time Warner to receive a W-2, it should arrive in the mail. If you do not receive it in the mail, you can go on their website or call them for assistance.
Within 12 - 14 days
First Class Mail is delivered in three to five days.
It should take one day to arrive and possibly up to 3 working days from time of mailing to be delivered.
It will usually just take one day for a piece of mail to arrive in RI from NY. There is no need to send the mail for overnight delivery.
The time varies from a week to several weeks
USPS Can deliver mail anywhere between the hours of 7:00 am - 8:00 PM ( HOME ) 5:00 am - 4:00PM (Business)