In this trial you may see 100 cells under high power (do not count cells without nuclei - those are dead cells).

StageTrial #1%
1. Interphase8888
2. Prophase55
3. Metaphase11
4. Anaphase33
5. Telophase33
Total #100100

If interphase comprises 88% of mitosis:

960 min. * 88% = 816 min. (13 hours, 36 min.)

prophase: 960 min. * 5% = 48 min.
metaphase: 960 min. * 1% = 10 min.
anaphase : 960 min. * 3% = 29 min.
telophase: 960 min. * 3% = 29 min.