12 Hours Ago

12 Hours Ago
Thursday
April 24
3:43:31 AM
EDT Time
Now
Thursday
April, 24
3:43:31 PM
EDT Time

Right now it is 3:43 PM on Thursday, April 24, 2025. 12 hours ago, it was 3:43 AM on Thursday, April 24, 2025.
This is based on EDT timezone (which we estimate as your local timezone).

Your Activity in the Last 12 Hours

50,400 Heartbeats 4,200 per hour
8,640 Breaths 720 per hour
3,000 Steps 250 per hour
1,200 Calories 100 per hour

Calculate Other Time Periods

Need a different calculation for time from now or ago?
Use our calculator to find any past or future time based on your requirements.

12 Hours Ago Around the World

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New York

EDT
12 hours ago
03:43
Thu, Apr 24
Current time in New York: 15:43
UTC-04:00
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Rio de Janeiro

BRT
12 hours ago
04:43
Thu, Apr 24
Current time in Rio de Janeiro: 16:43
UTC-03:00
๐Ÿ‡ฌ๐Ÿ‡ง

London

BST
12 hours ago
08:43
Thu, Apr 24
Current time in London: 20:43
UTC+01:00
๐Ÿ‡ซ๐Ÿ‡ท

Paris

CEST
12 hours ago
09:43
Thu, Apr 24
Current time in Paris: 21:43
UTC+02:00
๐Ÿ‡ฆ๐Ÿ‡ช

Dubai

GST
12 hours ago
11:43
Thu, Apr 24
Current time in Dubai: 23:43
UTC+04:00
๐Ÿ‡ฎ๐Ÿ‡ณ

New Delhi

IST
12 hours ago
13:13
Thu, Apr 24
Current time in New Delhi: 01:13
UTC+05:30
๐Ÿ‡ญ๐Ÿ‡ฐ

Hong Kong

HKT
12 hours ago
15:43
Thu, Apr 24
Current time in Hong Kong: 03:43
UTC+08:00
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Tokyo

JST
12 hours ago
16:43
Thu, Apr 24
Current time in Tokyo: 04:43
UTC+09:00
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Sydney

AEST
12 hours ago
17:43
Thu, Apr 24
Current time in Sydney: 05:43
UTC+10:00
Time format:

Now and 12 Hours Ago Time Formats

Compare how the same timestamp is formatted using different standard conventions.
Each format serves specific use cases in various programming contexts.

Format Format Code Current Time 12 Hours From Now
ISO 8601 c
2025-04-24T19:43:31+00:00
2025-04-25T07:43:31+00:00
RFC 2822 r
Thu, 24 Apr 2025 19:43:31 +0000
Fri, 25 Apr 2025 07:43:31 +0000
MySQL DATETIME Y-m-d H:i:s
2025-04-24 19:43:31
2025-04-25 07:43:31
Unix Timestamp U
1745523811
1745567011
Time (12-hour) g:i:s A
7:43:31 PM
7:43:31 AM
Time (24-hour) H:i:s
19:43:31
07:43:31
Date (Short) n/j/Y
4/24/2025
4/25/2025
Date (Medium) M j, Y
Apr 24, 2025
Apr 25, 2025
Date (Long) l, F j, Y
Thursday, April 24, 2025
Friday, April 25, 2025

12 Hours Time Period Analysis

Comprehensive breakdown of the 12-hour period and other time references.

Time Units

Natural Time 12 hours
Period in human-readable format
Minutes 720
Total minutes (60 minutes ร— 12 hours)
Seconds 43,200
Total seconds (3600 seconds ร— 12 hours)

Time References

Hours Until Weekend 32
Hours remaining until Saturday
Hours Until Midnight 8
Hours remaining until 00:00
Hours Until Next Month 128
Hours remaining until the first day of next month

Astronomical References

Earth Rotation 180.0ยฐ
Degrees Earth has rotated in this period
Moon Orbit 1.83%
Percentage of lunar orbit completed
ISS Orbits 8.0
Number of ISS orbits around Earth (90 min each)

Code Implementation

Need to find what time it was 12 hours ago?
Here are several ways to calculate it in different programming languages:

// PHP
// Get time from 12 hours ago
$pastDate = date('Y-m-d H:i:s', strtotime('-12 hours'));

// Get time 12 hours from now
$futureDate = date('Y-m-d H:i:s', strtotime('+12 hours'));

// Using DateTime (recommended approach)
$date = new DateTime();
$date->modify('-12 hours');
echo $date->format('Y-m-d H:i:s');
// JavaScript
// Get time from 12 hours ago
const pastDate = new Date(Date.now() - 12 * 60 * 60 * 1000);

// Get time 12 hours from now
const futureDate = new Date(Date.now() + 12 * 60 * 60 * 1000);

// Alternative approach using date methods
const date = new Date();
date.setHours(date.getHours() - 12);
console.log(date.toISOString());
# Python
from datetime import datetime, timedelta

# Get time from 12 hours ago
past_date = datetime.now() - timedelta(hours=12)

# Get time 12 hours from now
future_date = datetime.now() + timedelta(hours=12)

# Format the dates
print(past_date.strftime('%Y-%m-%d %H:%M:%S'))
print(future_date.strftime('%Y-%m-%d %H:%M:%S'))

Frequently Asked Questions

What time was it 12 hours ago?

12 hours ago from now it was 7:43:31 AM on April 24, 2025

How accurate is the 12 hours ago calculation?

Our calculator provides the exact date and time that will be 12 hours from the current moment, accounting for:

  • Exact time differences
  • Day transitions
  • 12/24-hour time formats

How is the time calculated?

The time is calculated based on the current local time on your device. It adds exactly 12 hours to the current hour, minute, and second.

Can I select a different starting time instead of "now"?

Currently, the tool calculates based on the present moment. Soon, however, youโ€™ll be able to manually enter a custom start timeโ€”this feature is in development.

Does this tool account for Daylight Saving Time changes?

Yes, the tool accounts for Daylight Saving Time (DST) based on the time zone settings of your device.

Does this tool refresh if I leave and return to the page?

Yes, the tool will automatically recalculate 12 hours from now based on the current time if you refresh or revisit the page.

But you don't have to! Our page automatically refreshes every second to ensure that the โ€˜12 hours from nowโ€™ calculation stays accurate and up-to-date with the current time.

Is there a way to save or share the calculated time?

At present, you can take a screenshot of the result to share or save the time. Additional sharing options may be available in the future.

Last 12 Hours Breakdown

Here's a breakdown of typical activities and energy levels during the last 12 hours:

Time Day Day Period Best For Energy Level
03:00 Thursday, Apr 24 Deep Night ๐Ÿ”„ Body restoration
04:00 Thursday, Apr 24 Early Morning โญ Final sleep cycle
05:00 Thursday, Apr 24 Early Morning ๐ŸŒ… Natural awakening
06:00 Thursday, Apr 24 Morning ๐ŸŒ„ Morning routine
07:00 Thursday, Apr 24 Morning โ˜€๏ธ High productivity
08:00 Thursday, Apr 24 Morning ๐ŸŽฏ Peak focus time
09:00 Thursday, Apr 24 Morning ๐Ÿ’ช Maximum alertness
10:00 Thursday, Apr 24 Late Morning ๐Ÿง  Complex tasks
11:00 Thursday, Apr 24 Late Morning ๐Ÿ“Š Strategic thinking
12:00 Thursday, Apr 24 Noon ๐Ÿฝ๏ธ Lunch break
13:00 Thursday, Apr 24 Early Afternoon ๐Ÿ˜Œ Post-lunch dip
14:00 Thursday, Apr 24 Afternoon ๐Ÿ’ญ Strategic thinking

Time Perspective

Here's what typically happens in 12 hours around the world:

180,000 Babies Born 15,000 per hour
12,000 Pets Adopted 1,000 per hour
36,000 Pizzas Enjoyed 3,000 per hour
8 ISS Earth Orbits 1 per hour

Weeks from today

Days from today

Months from today

Weeks ago

Days ago

Months ago

Hours ago

Hours from now

Minutes ago

Minutes from now