[squid-users] about webalizer

i am getting this error when i execute webalizer
Error: Skipping record (bad date): [01/jan/1970:05:03:22 -0000] [11719]
Error: Skipping record (bad date): [01/jan/1970:05:03:22 -0000] [11720]
Error: Skipping record (bad date): [01/jan/1970:05:03:22 -0000] [11721]
Error: Skipping record (bad date): [01/jan/1970:05:03:22 -0000] [11722]
Error: Skipping record (bad date): [01/jan/1970:05:03:22 -0000] [11723]
what does it mean when my system date is updated

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