Last year, most USDT activity on Ethereum happened between 2:00 and 14:00 coordinated universal time, and during that time, the period from 6:00 to 8:00 UTC was the busiest, according to the report by blockchain-analysis firm Coin Metrics. This year, however, there has been less usage from 2:00 to 6:00 UTC and more from 15:00 to 20:00 UTC.