The phrase "around sunrise" is correct and usable in written English.
It can be used to indicate a time period that is approximately at the time when the sun rises.
Example: "We plan to start our hike around sunrise to enjoy the beautiful morning light."
Alternatives: "at dawn" or "near sunrise".
When Maria noticed, around sunrise, that her daughter hadn't returned, she began to worry.
Finally, around sunrise, they pitched-up at the Four Seasons in Beverly Hills, for a champagne breakfast.
The looting on nearby Wood Green's main high street was brazen, and was still going on around sunrise at 5.30am.
Mayweather's vampiresque schedule — his days start in the afternoon and end around sunrise — can be a challenge, but they all knew the job description.
Few reports (roughly 1 percent) are from between 5 00 and 6 00 am, the period just around sunrise when the atmosphere is often very stable.
Instead, 40 percent of the nation is watching matches that begin at home in the middle of the night and end around sunrise.
When the participants were camping, their bodies started to release melatonin around sunset, and stopped releasing melatonin around sunrise--an average of two hours earlier than at home.
We used only data from sampling points collected at 8 00, 10 00, 12 00, 14 00 and 16:00 as these times were far enough from sunrise (around 4 30) and sunset (around 19 00).
The inflatable bow of the boat lifts and suddenly they're tearing around the Sunrise into open water.
Costic's team started with 60 300-pound blocks of ice in their studio last week, carving fine details like the Statue of Liberty torch and the MetLife corporate logo (which itself includes a New York skyline image, creating a fractal skyline-within-skyline-within-ice effect that can be difficult to wrap the brain around at sunrise).
Furthermore, the consideration of the solar zenith angle seems quite functional except around local sunrise hours.
