How Long Until 1:20? Quick Time Chart and Easy Formula
If you are asking how long until 1:20, the answer depends on your current time. Subtract the current time from 1:20, and you get the time remaining. At 12:00 PM, it is 1 hour and 20 minutes until 1:20 PM. At 1:00 PM, it is 20 minutes.
This guide shows you the fastest way to get the answer, plus charts, tricks, and time zone tips for readers across the USA. Last updated: October 2026.
Quick Answer: How Long Until 1:20 Right Now?
Follow these four steps and you will have your answer in under ten seconds:
- Check the current time on your phone, watch, or computer.
- Decide if you mean 1:20 AM or 1:20 PM.
- Count the hours first, then the minutes.
- Add them together for your total countdown.
Example: It is 11:05 AM and you want 1:20 PM. From 11:05 to 12:05 is one hour. From 12:05 to 1:05 is another hour. From 1:05 to 1:20 is 15 minutes. Total: 2 hours and 15 minutes.
Quick Summary Table for 1:20
This table gives you every key fact about the 1:20 time in one place.
| Detail | 1:20 AM | 1:20 PM |
| 12 hour format | 1:20 AM | 1:20 PM |
| 24 hour format | 01:20 | 13:20 |
| Military time | 0120 | 1320 |
| Minutes after midnight | 80 | 800 |
| Seconds after midnight | 4,800 | 48,000 |
| Part of the day | Late night | Early afternoon |
| Common use | Night shifts, alarms | Lunch breaks, meetings |
| Spoken form | One twenty AM | One twenty PM |
1:20 AM vs 1:20 PM: Know Which One You Mean

Most people forget this step, and it causes the biggest mistakes. The two times sit 12 hours apart, so mixing them up gives you a wrong answer by half a day.
What Is 1:20 AM?
1:20 AM is 80 minutes after midnight. It falls in the middle of the night. Night shift workers, students, and people with early flights often search for this time.
What Is 1:20 PM?
1:20 PM is 13:20 on a 24 hour clock. It lands just after lunch for most Americans. Meetings, school classes, and doctor visits often start around this time.
Quick rule: If the sun is up, you probably mean PM. If it is dark outside, you probably mean AM.
How to Calculate Time Until 1:20 by Hand

You do not need an app. Three simple methods work for any starting time.
Method 1: Count in Two Jumps
This is the easiest mental trick. First, jump to the next full hour. Then jump to 1:20.
- Current time 12:40 PM. Jump to 1:00 PM (20 minutes). Then jump to 1:20 PM (20 minutes). Total: 40 minutes.
- Current time 10:15 AM. Jump to 11:00 AM (45 minutes). Then count to 1:20 PM (2 hours and 20 minutes). Total: 3 hours and 5 minutes.
Method 2: Use Minutes After Midnight
Turn both times into minutes, then subtract.
- Convert 1:20 PM to minutes: 800.
- Convert your current time to minutes. For 11:00 AM, that is 660.
- Subtract: 800 minus 660 equals 140 minutes.
- Divide by 60: 2 hours and 20 minutes.
This method is great for spreadsheets and math lovers, because it avoids the hour boundary confusion.
Method 3: Use the 24 Hour Clock
The 24 hour clock removes AM and PM completely. Write your current time as 24 hour time, then subtract from 13:20.
- Current time 09:30. Subtract 09:30 from 13:20. Result: 3 hours and 50 minutes.
- Current time 12:55. Subtract 12:55 from 13:20. Result: 25 minutes.
Tip: When the minutes you are subtracting are larger than 20, borrow one hour. That means 13:20 becomes 12:80 for the math. Then subtract as normal.
Time Until 1:20 PM Chart
Use this countdown chart to find your answer fast. Find your current time in the left column.
| Current Time | Time Until 1:20 PM |
| 6:00 AM | 7 hours 20 minutes |
| 8:00 AM | 5 hours 20 minutes |
| 9:00 AM | 4 hours 20 minutes |
| 10:00 AM | 3 hours 20 minutes |
| 11:00 AM | 2 hours 20 minutes |
| 11:30 AM | 1 hour 50 minutes |
| 12:00 PM | 1 hour 20 minutes |
| 12:30 PM | 50 minutes |
| 12:45 PM | 35 minutes |
| 1:00 PM | 20 minutes |
| 1:10 PM | 10 minutes |
| 1:15 PM | 5 minutes |
Time Until 1:20 AM Chart
This chart works for late night and overnight planning.
| Current Time | Time Until 1:20 AM |
| 8:00 PM | 5 hours 20 minutes |
| 9:00 PM | 4 hours 20 minutes |
| 10:00 PM | 3 hours 20 minutes |
| 11:00 PM | 2 hours 20 minutes |
| 11:30 PM | 1 hour 50 minutes |
| 12:00 AM | 1 hour 20 minutes |
| 12:30 AM | 50 minutes |
| 1:00 AM | 20 minutes |
If your current time is already past 1:20, the countdown points to tomorrow. For example, at 2:00 PM, the next 1:20 PM is 23 hours and 20 minutes away.
Also Read This: How Much Time Until 2:35?
Time Zone Check for US Readers
Your answer changes if the event happens in a different time zone. The USA has four main zones in the lower 48 states. Use this table to match 1:20 PM Eastern Time across the country.
| Time Zone | Local Time When It Is 1:20 PM ET |
| Eastern Time (ET) | 1:20 PM |
| Central Time (CT) | 12:20 PM |
| Mountain Time (MT) | 11:20 AM |
| Pacific Time (PT) | 10:20 AM |
Example: A webinar starts at 1:20 PM ET. You live in Los Angeles and it is 9:00 AM there. The webinar starts at 10:20 AM Pacific. Your wait is 1 hour and 20 minutes.
Always check the time zone label on invitations, flight tickets, and live stream announcements. A missing label is the most common reason people show up late.
Daylight Saving Time Alert for 2026

Daylight saving time ends on Sunday, November 1, 2026, for most of the USA. At 2:00 AM, clocks move back to 1:00 AM.
This creates a rare situation. The time 1:20 AM happens twice on that night. The first 1:20 AM comes before the change. The second 1:20 AM comes one hour later.
What this means for you:
- A countdown to 1:20 AM may show an extra hour that night.
- Phone alarms set for 1:20 AM usually fire at the first one.
- Night shift workers may work one extra hour.
Arizona (most of the state) and Hawaii do not change their clocks, so their countdowns stay the same all year.
Best Tools to Track the Countdown
Manual math is fine for one time, but tools help when you check often. Here are the most useful options:
| Tool | Best For | Why It Helps |
| Phone timer | Quick personal reminders | Counts down and rings at zero |
| Phone alarm | Fixed daily events | Repeats on schedule |
| Smart speaker | Hands free checks | Answer by voice |
| Online countdown page | Live visual timer | Shows hours, minutes, seconds |
| Spreadsheet formula | Work schedules | Handles many times at once |
For a spreadsheet, put your target time in one cell and your current time in another. Then subtract the two. Format the result as hours and minutes to see a clean answer.
Why People Search for “How Long Until 1:20”
This search is popular because 1:20 is a very common appointment time. Based on common scheduling habits, here is what drives it:
- Lunch break returns. Workers want to know when the lunch hour ends.
- Class schedules. Many schools start the next period around 1:20 PM.
- Doctor and dentist visits. Afternoon slots often begin right after lunch.
- Flight and train times. Travel departures use many odd minute marks.
- Night shift planning. 1:20 AM matters for break times and shift changes.
- Livestreams and gaming events. Fans count down to drops and launches.
Practical Tips to Manage Your Time Before 1:20
Years of scheduling work teach one lesson: the clock time and the real deadline are not the same thing. A 1:20 PM meeting does not mean you can work until 1:19 PM. You need travel time, setup time, and a short mental reset.
Try this simple plan:
- Subtract your travel time. A 15 minute walk means you leave at 1:05 PM.
- Add a 5 minute buffer. Small delays happen every day.
- Set two alarms. One at 30 minutes before and one at 10 minutes before.
- Prepare early. Gather files, charge your phone, and check links.
- Tell others your hard stop. A clear boundary protects your focus.
Real example: Your call starts at 1:20 PM and it is 12:50 PM now. You have 30 minutes on paper. After a 10 minute prep and a 5 minute buffer, you really have 15 minutes of free work time.
Common Mistakes When Counting Down to 1:20
Avoid these errors to keep your answer accurate:
- Mixing AM and PM. This creates a 12 hour error.
- Forgetting the minute borrow. From 12:50 to 1:20 is 30 minutes, not 70.
- Ignoring the time zone. Always confirm where the event happens.
- Using decimal hours. One hour and 20 minutes is not 1.20 hours. It is 1.33 hours.
- Skipping the date. After 1:20 passes, the next one is tomorrow.
The decimal mistake is very common in payroll and billing. To convert minutes to decimals, divide the minutes by 60. So 20 minutes equals 0.33 of an hour.
Also Read This: How Long Until 10:15?
Frequently Asked Questions
How long until 1:20 PM if it is 12:00 PM?
It is 1 hour and 20 minutes until 1:20 PM. That equals 80 minutes.
How many minutes are there from midnight to 1:20 PM?
There are 800 minutes from midnight to 1:20 PM. That is 13 hours and 20 minutes.
What is 1:20 PM in military time?
1:20 PM is 1320 hours in military time. In 24 hour format, it is written as 13:20.
How long is 1 hour and 20 minutes in decimal hours?
It equals about 1.33 hours. Divide the 20 minutes by 60 to get 0.33.
Does daylight saving time change the countdown to 1:20 AM?
Yes, on the fall clock change night, 1:20 AM happens twice. Your countdown can gain one extra hour.
Conclusion
Finding how long until 1:20 takes just a few seconds once you know the method. Pick AM or PM, jump to the next full hour, then count the remaining minutes. For longer gaps, convert to minutes after midnight and subtract.
Use the charts above for quick answers, and double check your time zone before you plan anything. Also remember the daylight saving change on November 1, 2026, because it can shift your 1:20 AM countdown by a full hour.
Bookmark this page, set a phone alarm, and you will never miss your 1:20 moment again.