A transition period is a temporary phase during which changes are being made from one state or condition to another. It is a time of adjustment or adaptation before reaching a new or different situation. Full definition
If you worked part time or project work during transition periods, list it as a consulting business, listing contracts (with the client name) as an bullet under the consulting business. (recareered.com)
If there is a single dish that represents this current transition period of mine, it would have to be this soup. (healthynibblesandbits.com)
Some members supported its introduction for all members, but recommended a longer transition period for existing members compared with new ones. (democraticaudit.com)