Wiktionary
n. (context banking English) Settlement date on which interest payments are credited or debited to the customer's bank account; interest payments are made from this date onwards.
Wikipedia
Value date in finance is the date when the value of an asset that fluctuates in price is determined. The value date is used when there is a possibility for discrepancies due to differences in the timing of asset valuation. It usually applies to forward currency contracts, options and other derivatives, interest payable or receivable.
In accounting, value date is the date when the entry to an account is considered effective.
In banking, value date is the delivery date of funds traded. For spot transactions it is the future date on which the trade is settled. In the case of a spot foreign exchange trade it is normally two days after a transaction is agreed upon.