It is not necessary to be logged into QRZ at the time of the QSO. A QSO record can be entered at any time, even years after the QSO occurred, and in fact that often occurs as new users upload their records via an ADIF file created earlier. I also log my QSOs on paper and only monthly enter them into my electronic logbook. When I first used QRZ, some QSO records entered were decades old and some of these have surprisingly been confirmed UTC is a time standard and not a time zone. UTC time is the same throughout the world and it is not adjusted for daylight savings time or other local adjustments. Users having the ability to pass an amateur radio license examinations should have the capability of converting their local time to UTC units. If you work a party in a different time zone and both of you record it in UTC units the date/time should match; QRZ only requires that they match within 30 minutes and exact agreement is not a requirement. Only the band is required, not the exact frequency; e.g. 40m. Same for mode - CW or SSB, etc., select from pull down menu. QRZ requires confirmation by matching data entered on a double-blind basis. Many suggest a relaxation to these rules so that one can merely accept another's data; QRZ does not agree.