Changing Datetime Format in Python

Question

how do I change format to DD/M/YYY H:M for this line:

ax1.set_title('from {} to {} \n'.format(startTime, endTime, fontsize=22))

cause currently when I run the module it is displayed this way: YYYY-MM-DD H:M:S

This is my code:

linematchregex = re.compile('(\d+/\d+/\d+ \d+:\d+),(\d+\.\d+)')

startTime = datetime.strptime(raw_input('please enter start time :'), '%d/%m/%Y %H:%M'
endTime   = datetime.strptime(raw_input('please enter end time :') , '%d/%m/%Y %H:%M')


**ax1.set_title('from {} to {} \n'.format(startTime, endTime, fontsize=22))**
ax1.set_ylabel('Temp')
ax1.set_xlabel('Time')
plt.show()

Please consolidate your sample code. The plotting is unrelated to your question. — Kijewski
– Kijewski, Commented Aug 15, 2014 at 15:23

John Zwinck · Accepted Answer · 2014-08-15 15:22:54Z

3

You need to use strftime() (sort of the inverse of strptime() which you already use): https://docs.python.org/2/library/time.html#time.strftime

answered Aug 15, 2014 at 15:22

John Zwinck

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5 Comments

jonrsharpe Over a year ago

@backtotheroots3 why don't you give it a go and see where you get to?

backtotheroots3 Over a year ago

ok I will, sorry because I do not have my program with me right now

backtotheroots3 Over a year ago

Hi john, I already use strftime for sometime else as you have said, so will it cause problems if I use it again?

backtotheroots3 Over a year ago

I tried inserting this ax1.set_title('from {} to {} \n'.format(startTime, endTime, datetime.strptime('%d/%m/%Y %H:%M') but I get a error - strptime() takes exactly 2 arguments

John Zwinck Over a year ago

Read my answer again carefully, then read the strftime docs carefully. It's all right here, but you're not using it correctly.

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