Possibly but it was dark on both sides of the net. Stupid Wimbledon didn't have lights, and they also have a garbage surface now.
Yes, it was dark on both sides. But, people keep saying this as though it somehow makes everything fair. It is not. If it rains, it rains on both sides why don't they continue to play. If it snows, it snows on both sides, why don't they continue to play. The basic point here is that there is a reasonable expectation that tennis would be played under normal conditions and normal conditions certainly encompass having enough lighting.
The Wimbledon final match ended at 9:15 in dark conditions. It was held on 6th July 2008. On 6th Julye 2018 (note that it is the very same day and so difference in sunset timings if any would be negligible), the match between D. Novak and Milos Raonic was stopped at 9 :00 p.m. and that too when the score was one set all and 6-5 for Milos in the third. Note that the score was not even even.
The supervisor told them that they have determined that the conditions are suboptimal. They told the players that the tournament would prefer to stop it right now, but if both players agree, they would let them play one more game. They were also told that, in the event the score becomes 6-6, they will not be allowed to play the tie-breaker on the same day, even if both players agree. The reasoning was that the tie-breaker is going to determine who wins the second set and thus is a key factor in determining who wins the match. They did not want such an important tie-breaker being played under sub-optimal conditions.
