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Please use alipay.acquire.cancel interface to cancel an In-store Payment transaction on the day of the transactions. Usually, the transaction cannot be cannelled the next day.

However, there is a 15-minute buffer zone around the cutoff time, which is 00:00, GTM+8.

For example:

• If an In-store Payment trasnaction is completed at January 1, 15:00, GTM+8, then the transction can be cancelled before January 1, 24:00, GTM+8.
• If an In-store Payment trasnaction is initiated at January 1, 23:50, GTM+8, but not successfully paied, then the transction can be cancelled before January 2, 00:05, GTM+8. Once it's paied and completed, it can only be cancelled before 00:00, GTM+8.

当面付撤销接口（alipay.acquire.cancel）必须在当天内执行，隔日不能撤销。

但是在北京时间日切点（0:00）边界时间有15分钟缓冲。

比如，某笔当面付交易发生在1月1日15:00完成交易（GMT+8），那么在当日00:00之前都可以执行cancel，超过00:00执行失败。

如果某笔当面付交易发生在1月1日23:50下单（GMT+8），未完成付款。那么它可以在1月2日00:05之前执行cancel撤销订单。但如果已经付款成功，那么就只能在当日00:00之前都可以执行cancel。