otherwhile

/ˈʌðərˌwaɪl/
adverb
  1. At another time; on some other occasion.
    • Otherwhile, we might have gone to the beach, but today the weather is too cold.
    • She usually works late, but otherwhile she leaves early to pick up her kids.
    • Otherwhile, the park is quiet, but on weekends it is full of people.