how long ago was am

The query "how long ago was am" is ambiguous as it lacks context, such as which specific "AM" time or event is being referred to. "AM" refers to the time from midnight (12:00 AM) to just before noon (11:59 AM) in a 12-hour clock format. To answer how long ago an AM time was relative to the current time, one would need to specify the exact AM time (e.g., 9:00 AM) and the current time to calculate the duration ago. If the question means "how long ago was a particular AM time today," it could be calculated by subtracting that AM time from the current time. For example, if it's now 1:00 PM and the time in question is 10:00 AM, then 3 hours have passed since that AM time. Please specify the exact AM time or event for an accurate calculation of "how long ago" it was. If the intent is to understand the meaning or calculation method of "how long ago" in terms of AM times, this can also be explained in detail.