ADA Transfer from Bittrex to Binance

Last night I transferred about 3,500 ADA from Bittrex to Binance. The transaction remained pending for a few hours in Bittrex, but eventually went through. However, it hasn’t shown up in Binance yet. I was able to locate the txID on the cardanoexchange which brought some peace of mind that there is a record of the transaction. However, its been about 20 hours since I initiated the transfer. Should I be concerned, or are these delays normal? The other coins I transferred over appeared almost immediately. Thanks in advance for your input.