customs is a 24/7/365 job?

tracking a package on usps.com

* Inbound Out of Customs, November 12, 2009, 11:44 pm
* Inbound Into Customs
* Inbound International Arrival, November 12, 2009, 12:26 am, ISC NEW YORK NY(USPS)
* Foreign International Dispatch, November 07, 2009, 10:17 am, JAKARTA SOEKARNOHATTA AIRMAIL EO, INDONESIA
* Foreign Arrival at Outward Office, November 07, 2009, 9:58 am, JAKARTA SOEKARNOHATTA AIRMAIL EO, INDONESIA