Unity Consciousness #427 which lays the groundwork for this understanding.
Yes, There Is An Appointed Time
Based on understandings of free will and destiny in the above and related articles, it is likely there is an appointed time for some things: things such as first humans coming into existence, the sun shining, the adjusting of rates of motion, the beginning of Creation and climates changing.No, There Is Not An Appointed Time
The understandings of free will and destiny in the above and related articles do not support the notion of an appointed time for human transition into this life (birth) and out of this life (death). Let's examine this from the death perspective.If there was a predestined appointed time for death, the method of death must also be predestined. How can there be an appointed time without an appointed manner, place, etc.
An appointed time indicates there is no way to prevent death. No life can be saved from physical death.
Since it is unlikely there is an appointed time for death, it is also unlikely there is an appointed time for birth. Birth and death are the same things. See #122 and #123. Under the notion of an "appointed time," humans seek to escape responsibility for death and responsibility for striving to understand things. An "appointed time" is another method of sweeping what we don't fully understand under a rug of reasoning. The details are neatly hidden under the cover term of "appointed time" so we don't have to analyze the details. We accept the meaning of the rug for the meaning of what's under the rug. For more understanding on this avoidance technique, search, luck, miracles, accidents and randomness.