Fun fact: This time's destination was Ajigaura Beach.
Based on last chapter, we can assume Haruka lives in Kodaira, Tokyo.
From Kodaira to Ajigaura Beach, it takes 2 hours by car.
If they left at 02:15, they should've arrived around 04:30.
In Japan, the sun rises between 04:30 (summer) and 07:00 (winter), so given the current setting of winter, the sun should've risen after 05:45.
Let's say they departed at 02:45 after getting ready. Mine appears to have been driving at 90 km/h instead of 100 km/h, so they should've arrived around 05:30. Let's also assume it took them 30 minutes to reach the beach from the parking lot. They'd have arrived on the beach at around 06:00.
My guess is, Mine was actually driving slower than 90 km/h for safety reasons.