How long is the bullet train ride from Japan to Kyoto?

I'm curious, could you please clarify for me the estimated duration of a bullet train journey from Japan to Kyoto? I'm interested in understanding the approximate travel time for this particular route, as I'm planning a trip and want to make sure I factor in the right amount of time for transportation. Additionally, I'd appreciate any insight you may have on the frequency of these trains or any potential delays that I should be aware of. Thank you in advance for your assistance.