It is a recommended action to make the essential parts of prayer equal in length, so the bowing position, the standing after bowing, the prostration, and the sitting between the two prostrations, should be make approximately the same in length.

al-Barā' ibn 'Aazib (may Allah be pleased with him) narrated:

"The time taken by the Prophet (may the peace and blessings of Allah be upon him) during prostrations, bowing, and sitting between the two prostrations was about the same." [al-Bukhārī: 820]