"earliest at" is correct and usable in written English.
You can use it when you are referring to a certain time or date. For example, "We need to be there by the earliest at 8 am."
Isochronal propagation maps of ATs, measured relative to the earliest AT in the array, were derived using Origin (MicroCal).
On the issue of Sudan and Darfur, the cause caught fire earliest at Ivy League schools.
The fare immediately surrounding it is canonical but includes pictures predating the earliest at the Jewish Museum.
The band, with personnel changes, existed for 22 years, releasing 21 albums and playing more than 2,200 shows, many of the earliest at CBGB.
The timings, mainly based on information obtained from councils by the PA, show that Broxbourne could declare earliest, at 11.45pm on Thursday.
King County, the state's largest and home to Seattle, and Thurston County, home to the state capital of Olympia, will open the earliest, at 12 01am, to start issuing marriage licences.
