It’s recommended to start hiking early morning between 8 and 9 o'clock because the weather is usually clear, but it can become cloudy in the afternoons. Again, after 7 hours of hiking you probably just feel happy to arrive at Dingboche and stay for an additional acclimatization day. The beautiful panorama will hopefully accompany you all the way to Dingboche. Consider hiking to the Dingboche View Point on the acclimatization day.