4 ms·not all people only sleep at night.by swashboon 5y agonot all people only sleep at night.nemetroid 5y agoTrue, but the author admits to waking people in the middle of the night.dahfizz 5y agoIn the middle of the receiver's night. It is impossible to know with 100% certainty the local time of the person just by their phone number.edoceo 5y agoWhy not simply call and ask what time it is?fapjacks 5y agoPrivilege is being a day person.