How to convert Unix timestamp to Datetime in Ruby

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    unix_timestamp = 1354627318
    date_time = Time.at(unix_timestamp)
    
    puts "Converted Date: #{date_time}"

Output:

Converted Date: 2012-12-04 13:21:58

Example only. There may be multiple ways to perform this operation.

Code Explanation

In this Ruby example, the Unix timestamp 1354627318 is passed to the Time.at method, which creates a Time object representing the corresponding date and time.
The resulting Time object is then outputted as a human-readable string, showing the date and time, 2012-12-04 13:21:58, in the local time zone.

Convert Date to Unix timestamp in Ruby

Other useful Ruby date functions

Function	Description	Example
`Time.now`	Returns the current date and time as a Time object.	`Time.now` returns 2024-08-28 12:34:56 -0400
`Date.today`	Returns the current date as a Date object.	`Date.today` returns 2024-08-28
`Time.at()`	Converts a Unix timestamp to a Time object representing the corresponding date and time.	`Time.at(1698499452)` returns 2023-10-28 12:44:12 -0400
`Time.new()`	Creates a new Time object representing the specified date and time.	`Time.new(2023, 10, 28, 12, 44, 12)` returns 2023-10-28 12:44:12 -0400
`Time#to_i`	Returns the Unix timestamp (number of seconds since January 1, 1970) for the given Time object.	`Time.new(2023, 10, 28, 12, 44, 12).to_i` returns 1698499452
`Date.parse()`	Parses a string into a Date object.	`Date.parse('2023-10-28')` returns 2023-10-28
`Time.parse()`	Parses a string into a Time object.	`Time.parse('2023-10-28 12:44:12')` returns 2023-10-28 12:44:12 -0400
`DateTime.now`	Returns the current date and time as a DateTime object.	`DateTime.now` returns 2024-08-28T12:34:56+00:00
`DateTime#strftime()`	Formats the DateTime object according to the given format string.	`DateTime.now.strftime('%Y-%m-%d %H:%M:%S')` returns 2024-08-28 12:34:56
`DateTime#to_time`	Converts a DateTime object to a Time object.	`DateTime.now.to_time` returns 2024-08-28 12:34:56 -0400

Current Unix Timestamp SECONDS SINCE JAN 01 1970

Current UTC Time

2025-08-20