I mostly agree with 0brand, but we note in the “Do Not” wiki entry:
Do not connect to same destination at the same time of the day or night. Try to vary connection times.
That is one of the many recommendations from the Anonymous group. That behaviour simply narrows the anonymity set, since most people would be doing stuff in the evening, or after work. So, if I can see that certain activities of an anonymous handle is always between time X and Y, then I can reasonably assume the timezone.
While that information may be useless in isolation, when combined with other bits and pieces the user might let slip over time with a handle they haven’t changed for some time, it might just be enough to de-anonymize them.