Definition
Before a specific time or event.
提早；事先
To ensure everything goes smoothly, I like to plan my trips ahead of time.
為了確保一切順利，我喜歡提前計劃我的旅行。
It's advisable to book your flight tickets ahead of time if you want the best seats.
如果你想獲得最好的座位，建議你提前預訂機票。
Please inform me ahead of time if you will be attending the meeting.
如果你要參加會議，請提前通知我。