What Is 1845 Military Time? 6:45 PM Explained

1845 military time is 6:45 PM. The first two digits are the hour on a 24-hour clock, and the last two digits are the minutes. Because 18 is greater than 12, this is an afternoon or evening time.

Quick Conversion

Separate 1845 into 18 hours and 45 minutes. For a PM time after 1259, subtract 12 from the hour:

18 - 12 = 6

Keep the minutes unchanged. The result is 6:45 PM. The date and time zone do not change this hour conversion; they only determine where and on which date the time occurs.

How to Say 1845

In military-style speech, 1845 is commonly read as “eighteen forty-five.” In ordinary 24-hour usage, people may simply say “18:45.” In 12-hour notation, say “6:45 PM.”

Do not insert PM after a four-digit military time. Writing 1845 PM mixes two clock systems. Use either 1845 or 6:45 PM.

Nearby Times

• 1800 = 6:00 PM
• 1830 = 6:30 PM
• 1845 = 6:45 PM
• 1900 = 7:00 PM

These examples show the rule: for hours 13 through 23, subtract 12 from the hour and preserve the minutes.

A Practical Example

A shift ending at 1845 ends at 6:45 PM. If it began at 1015 with a 30-minute unpaid break, the paid duration is 8 hours, not 8 hours 30 minutes.

When a schedule crosses midnight, attach the date. A line that only says 1845 identifies a time of day, not which occurrence of that time is intended.

Common Mistakes

• Treating 1845 as a duration of 18 hours and 45 minutes
• Subtracting 12 from the minutes instead of the hour
• Dropping a zero from the minutes when the value is below 10
• Adding AM or PM to an already unambiguous 24-hour value
• Converting the clock but forgetting that two time zones may use different dates

The minute value 45 means three quarters of an hour past 18:00. It does not change the subtraction rule: only the hour portion is reduced by 12.

The Answer

1845 military time converts to 6:45 PM. Subtract 12 from the 18-hour value, leave 45 minutes unchanged, and use PM.