how to change time format in rails 3.0.1 - datetime

anyone can help me with this?
In my view I have:
<%= post.time %>
It displays on the screen for the row:
Sat Jan 01 17:18:00 UTC 2000
In every row it says "Sat Jan 01" + "UTC 2000"
How can I get rid of it and display only the time?
Many thanks

<%= post.date.strftime('%H:%M:%S') %>
You can read the reference for the full formatting syntax here. For example:
%S - Second of the minute (00..60)
%H - Hour of the day, 24-hour clock (00..23)
. . . and so on.

try something like this
datetime = DateTime.civil(2007, 12, 4, 0, 0, 0, 0) # => Tue, 04 Dec 2007 00:00:00 +0000
datetime.to_formatted_s(:db) # => "2007-12-04 00:00:00"
datetime.to_s(:db) # => "2007-12-04 00:00:00"
datetime.to_s(:number) # => "20071204000000"
datetime.to_formatted_s(:short) # => "04 Dec 00:00"
datetime.to_formatted_s(:long) # => "December 04, 2007 00:00"
datetime.to_formatted_s(:long_ordinal) # => "December 4th, 2007 00:00"
datetime.to_formatted_s(:rfc822) # => "Tue, 04 Dec 2007 00:00:00 +0000"
also you can add your custom format like this:
# config/initializers/time_formats.rb
Time::DATE_FORMATS[:month_and_year] = "%B %Y"
Time::DATE_FORMATS[:short_ordinal] = lambda { |time| time.strftime("%B #{time.day.ordinalize}") }

Related

how get this specific format of date in pre-request of postman

I have this in c#:
var date = DateTime.UtcNow.ToString("R", CultureInfo.InvariantCulture);
and the result is like this:
date = "Tue, 27 Dec 2022 13:30:35 GMT";
I want to have this result in pre-request of postman to pass this variable as date.
But this command doesn't give me the exact result:
var date = new Date();
//result: Tue Dec 27 2022 16:26:00 GMT+0100 (Central European Standard Time)
As I'm using this date variable for encryption, it's important to have it in the special format I have in c#.
Do you have any idea how can I have this result in postman?
To display time, you can use momentjs, that's already included in postman. The cons is it doesn't support timezone, so the code would be:
const moment = require('moment')
let datetime = moment().format("ddd, DD MMM YYYY HH:mm:ss ") + "GMT"
//Wed, 28 Dec 2022 08:08:36 GMT
Using reg expression in pre-request section
var date = new Date();
// Tue Dec 27 2022 12:10:39 GMT-0500 (Eastern Standard Time)
console.log(date);
let match = /(Sun|Mon|Tue|Wed|Thu|Fri|Sat)\s+(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s+(\d{1,2})\s+(\d{4})\s+(\d{2}|\d{1})\:(\d{2})\:(\d{2})\s([a-zA-Z]{3})/.exec(date);
// 0: "Tue Dec 27 2022 12:10:39 GMT"
// 1: "Tue"
// 2: "Dec"
// 3: "27"
// 4: "2022"
// 5: "12"
// 6: "10"
// 7: "39"
// 8: "GMT"
// newDate = "Tue, 27 Dec 2022 13:30:39 GMT";
newDate = `${match[1]}, ${match[3]} ${match[2]} ${match[4]} ${match[5]}:${match[6]}:${match[7]} ${match[8]}`
console.log(newDate);
Result in console
Tue Dec 27 2022 12:22:39 GMT-0500 (Eastern Standard Time)
Tue, 27 Dec 2022 12:22:39 GMT
Test string set in https://regex101.com/
Regular Expression
(Sun|Mon|Tue|Wed|Thu|Fri|Sat)\s+(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s+(\d{1,2})\s+(\d{4})\s+(\d{2}|\d{1})\:(\d{2})\:(\d{2})\s([a-zA-Z]{3})
In Reg Expression Visualization https://regexper.com/

Parsing timestamp in BigQuery with two different timezones

I'm having trouble parsing this datetime field in BigQuery that takes in two different time zone formats.
It is stored as a string. The timestamps look like either of these.
DateTime:
Thu Mar 03 2022 18:18:38 GMT+0000 (GMT)
Thu Mar 03 2022 00:04:32 GMT-0800 (Pacific Standard Time)
What I want:
DateTime:
Thu Mar 03 2022 10:18:38 GMT-0800 (Pacific Standard Time)
Thu Mar 03 2022 00:04:32 GMT-0800 (Pacific Standard Time)
I get errors with datetime and parse_timestamp trying to do something like this:
parse_timestamp("%a %b %d %E4Y %T", DateTime , 'US/Pacific')
How can I get this to work?
Consider below options
select *,
datetime(parse_timestamp("%a %b %d %Y %T GMT%Z", regexp_replace(DateTime, r' \([ \w]+\)', '')), 'US/Pacific'),
format_datetime("%a %b %d %Y %T", datetime(parse_timestamp("%a %b %d %Y %T GMT%Z", regexp_replace(DateTime, r' \([ \w]+\)', '')), 'US/Pacific')),
from your_table
if applied to sample data in your question - output is

Unable to convert EST/EDT timezone to another format

Through Python i'm trying to convert the future date into another format and subtract with current date but it's throwing error.
Python version = Python 3.6.8
from datetime import datetime
enddate = 'Thu Jun 02 08:00:00 EDT 2022'
todays = datetime.today()
print ('Tpday =',todays)
Modified_date1 = datetime.strptime(enddate, ' %a %b %d %H:%M:%S %Z %Y')
subtract_days= Modified_date1 - todays
print (subtract_days.days)
Output
Today = 2022-02-02 08:06:53.687342
Traceback (most recent call last):
File "1.py", line 106, in trusstore_output
Modified_date1 = datetime.strptime(enddate1, ' %a %b %d %H:%M:%S %Z %Y')
File "/usr/lib64/python3.6/_strptime.py", line 565, in _strptime_datetime
tt, fraction = _strptime(data_string, format)
File "/usr/lib64/python3.6/_strptime.py", line 362, in _strptime
(data_string, format))
ValueError: time data ' Thu Jun 02 08:00:00 EDT 2022' does not match format ' %a %b %d %H:%M:%S %Z %Y'
During handling of the above exception, another exception occurred:
Linux server date
$ date
Wed Feb 2 08:08:36 CST 2022
Point 6 in the Documentation tells that not all Timezone formats are available to be parsed by strptime.
%Z [...]
So someone living in Japan may have JST, UTC, and GMT as valid values, but probably not EST. It will raise ValueError for invalid values.
If possible, you could get the server date with the -u flag and parse the UTC timestamp.
date -u
Mi 2. Feb 14:39:11 UTC 2022
PS:
Also watch out for the leading whitespace in your strings.
If EDT is available on your system, the Value Error could be a result of the a mixup between enddate and enddate1.
' Thu Jun 02 08:00:00 EDT 2022' vs. enddate = 'Thu Jun 02 08:00:00 EDT 2022'
Unfortunately, only a subset of timezones is supported by strptime.
If you can ensure that the input does not contain any other timezones than EDT or EST, you could replace these by the corresponding UTC offsets and use %z instead of %Z:
from datetime import datetime
date_str = "Thu Jun 02 08:00:00 EDT 2022"
date_str = date_str.replace("EDT", "-0400")
date_str = date_str.replace("EST", "-0500")
date_parsed = datetime.strptime(date_str, "%a %b %d %H:%M:%S %z %Y")
# 2022-06-02 08:00:00-04:00
print(date_parsed)

Moment.js wierd translation

I'm using moment.js and getting something strange:
Input string:
'Wed, 30 Aug 2017 19:53:54 EST'
Want parse it using Moment.js:
moment('Wed, 30 Aug 2017 19:53:54 EST', 'ddd, DD MMM YYYY HH:mm:ss z');
getting object:
_d: Wed May 31 2017 23:59:59 GMT+0300 (FLE Daylight Time) {}
_f: "ddd, DD MMM YYYY HH:mm:ss z"
_i: "Wed, 30 Aug 2017 19:53:54 EST"
_isAMomentObject: true
_isUTC: false
_isValid: true
_i - it's input
_f - as I can understand - format
_d - it's date, result of parsing, WHY there 'May 31'?
Found and fixed problem. If someone faced with same problem, they could check my solution.
Datetime object mutate in controller:
let myDate = moment();
------------ skip ------------
let someObj = {
yesterday: myDate.subtract(1, 'days')
};
Because it's object, definitions like below doesn't helps:
const myDate = moment();
or
let myDate = moment();
Object.freeze(myDate);
only work solution for me is:
let myDate = moment();
------------ skip ------------
let someObj = {
yesterday: myDate.clone().subtract(1, 'days')
};

parse strange date format

I'm working on a Parser which Parses log files from a game so I can do analysis on auctions made within the game, however the date format that's being written by the logger seems to be causing problems as the format seems to be custom written for the logger, an example datetime stamp looks like: [Wed Nov 23 23:26:10 2016] I try to Parse it with:
func (r *AuctionReader) extractSaleInformation(line string) {
fmt.Println("Extracting information from: ", line)
// Format mask for output
layout := "DD-MM-YYYY hh:mm:ss"
// Replace the square brackets so we're just left with the date-time string
date := strings.TrimSpace(strings.Replace((strings.Split(line, "]")[0]), "[", "", -1))
fmt.Println(time.Parse(date, layout))
}
When I attempt to Parse the above date-time string I get the following error:
0001-01-01 00:00:00 +0000 UTC parsing time "DD-MM-YYYY hh:mm:ss" as "Wed Nov 23 23:26:10 2016": cannot parse "DD-MM-YYYY hh:mm:ss" as "Wed Nov "
How am I able to get the parser to recognise this seemingly custom format, I will be saving this data to Mongo so I don't want to store the auction time as a string as I want to query the timestamps individually.
Golang handle all date formatting in a unique way - it uses the reference time Mon Jan 2 15:04:05 MST 2006 (01/02 03:04:05PM '06 -0700) to show the pattern with which to format/parse a given time/string.
So, to read the format "Wed Nov 23 23:26:10 2016" you would put the reference date into that format: "Mon Jan 2 15:04:05 2006", and then do:
t, _ := time.Parse("Mon Jan 2 15:04:05 2006", "Wed Nov 23 23:26:10 2016")
Then, to output it in the given format, if you wanted the format DD-MM-YYYY hh:mm:ss, you would put the reference time into that format: 02-01-2006 15:04:05, and then do:
t.Format("02-01-2006 15:04:05")
https://play.golang.org/p/VO5413Z7-z
So basically, the main change is
// Format mask for output
layout := "DD-MM-YYYY hh:mm:ss"
should be
// Format mask for output
layout := "02-01-2006 15:04:05"
and
time.Parse(date, layout)
should be
time.Parse(layout, date)

Resources