mirror

this is likely not the correct place to ask this, but I'm not sure where to do it. I mirror IPFire, and have been getting the following warnings repeatedly over the past couple of weeks. I have verified the timestamp on my server is correct. Is it possible the primary mirror has a date/time issue?

***** Icinga *****

Notification Type: PROBLEM

Service: MirrorSync Host: IPFire Mirror mirror.smartappliances.us Address: 74.124.0.218 State: WARNING

Date/Time: Tue Aug 4 18:26:03 CEST 2015

Additional Info:

WARNING: http://mirror.smartappliances.us/ipfire/ is more than 12h off: 2d 16h 52m 44s