Using Python datetime with Timezones - Revision history

PeterHarding at 09:55, 5 June 2022

2022-06-05T09:55:28Z

← Older revision		Revision as of 19:55, 5 June 2022
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	* https://vinta.ws/code/timezone-in-python-offset-naive-and-offset-aware-datetimes.html		* https://vinta.ws/code/timezone-in-python-offset-naive-and-offset-aware-datetimes.html

			=Distinguishing between TZ Aware and TZ Naive Objects=

			<pre>
			from datetime import datetime

			now = datetime.now()

			now = now.replace(tzinfo=datetime.timezone.utc)

			if now.tzinfo == None or \
			now.tzinfo.utcoffset(now) == None:
			# If these conditions are met the object is unaware
			print("Unaware")
			else:
			print("Aware")

			print(now.isoformat())
			</pre>

PeterHarding at 09:48, 5 June 2022

2022-06-05T09:48:12Z

@@ Line 163: / Line 163: @@
 </pre>
 <pre>
 </pre>

PeterHarding at 09:46, 5 June 2022

2022-06-05T09:46:01Z

@@ Line 1: / Line 1: @@
 =Binding with Timezone Info=
@@ Line 128: / Line 134: @@
 -06-05 11:41:02 CEST+0200
 </pre>

PeterHarding at 09:42, 5 June 2022

2022-06-05T09:42:22Z

← Older revision		Revision as of 19:42, 5 June 2022
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	</pre>		</pre>

			==Output==

	<pre>		<pre>
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	print(f" TZ Aware datetime value \|{tz_aware_dt.isoformat()}\|")		print(f" TZ Aware datetime value \|{tz_aware_dt.isoformat()}\|")
	</pre>		</pre>

			==Output==

	<pre>		<pre>
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	</pre>		</pre>

			==Output==

			<pre>
			./tst_ft.py
			2022-06-05 09:41:02 UTC+0000
			2022-06-05 18:41:02 JST+0900
			2022-06-05 11:41:02 CEST+0200
			</pre>

PeterHarding at 09:41, 5 June 2022

2022-06-05T09:41:26Z

← Older revision		Revision as of 19:41, 5 June 2022
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	# Convert to US/Pacific time zone		# Convert to US/Pacific time zone

	dt = dt.astimezone(timezone('US/~~Pacific~~'))		dt = dt.astimezone(timezone('Asia/Tokyo'))

	print(dt.strftime(fmt))		print(dt.strftime(fmt))
Line 115:		Line 115:

	print dt.strftime(fmt)		print dt.strftime(fmt)

	</pre>		</pre>

PeterHarding at 09:38, 5 June 2022

2022-06-05T09:38:43Z

← Older revision		Revision as of 19:38, 5 June 2022
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	TZ Aware datetime value \|2022-06-05T19:49:37.782118+10:00\|		TZ Aware datetime value \|2022-06-05T19:49:37.782118+10:00\|
	</pre>		</pre>

			=Changing Timezones=

			<pre>
			from pytz import timezone
			from datetime import datetime

			fmt = "%Y-%m-%d %H:%M:%S %Z%z"

			# Current datetime in UTC

			dt = datetime.now(timezone('UTC'))

			print(dt.strftime(fmt))

			# Convert to US/Pacific time zone

			dt = dt.astimezone(timezone('US/Pacific'))

			print(dt.strftime(fmt))

			# Convert to Europe/Paris time zone

			dt = dt.astimezone(timezone('Europe/Paris'))

			print dt.strftime(fmt)

			</pre>

PeterHarding at 09:31, 5 June 2022

2022-06-05T09:31:26Z

@@ Line 1: / Line 1: @@
 =Explicit Numerical Offsets from UTC=
@@ Line 21: / Line 74: @@
 # Define the offset
-offset = "+1000"
+offset = "+1000"  # "Australia/Melbourne"
 # Convert as so...
@@ Line 27: / Line 80: @@
 tz_aware_dt = dt.astimezone(datetime.strptime(offset, "%z").tzinfo)
-print(f" TZ Aware dt |{tz_aware_dt.isoformat()}|")
+print(f" TZ Aware datetime value |{tz_aware_dt.isoformat()}|")
 </pre>

PeterHarding at 23:23, 4 June 2022

2022-06-04T23:23:35Z

← Older revision		Revision as of 09:23, 5 June 2022
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	# This is a naive datetime value		# This is a naive datetime value

	print(dt.isoformat())		print(f" TZ naive datetime value \|{dt.isoformat()}\|")
	print(dt.tzinfo)		print(f" dt.tzinfo \|{dt.tzinfo}\|")

	# Cast this as UTC		# Cast this as UTC
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	tz_aware_dt = dt.astimezone(datetime.strptime(offset, "%z").tzinfo)		tz_aware_dt = dt.astimezone(datetime.strptime(offset, "%z").tzinfo)

	print(tz_aware_dt.isoformat())		print(f" TZ Aware dt \|{tz_aware_dt.isoformat()}\|")
	</pre>		</pre>

PeterHarding at 23:19, 4 June 2022

2022-06-04T23:19:51Z

← Older revision		Revision as of 09:19, 5 June 2022
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	<pre>		<pre>
			#!/usr/bin/env python3

	from datetime import datetime, timezone		from datetime import datetime, timezone

PeterHarding: Created page with " =Explicit Numerical Offsets from UTC=

 from datetime import datetime, timezone  dt = datetime.now()  # This is a naive datetime value  print(dt.isoformat()) print(dt.tzinfo)  # Cast this as UTC  dt = dt.replace(tzinfo=timezone.utc)  # Define the offset  offset = "+1000"  # Convert as so...  tz_aware_dt = dt.astimezone(datetime.strptime(offset, "%z").tzinfo)  print(tz_aware_dt.isoformat())

Category:Python Category:datetime Category:EXamples"

2022-06-04T23:18:29Z

Created page with " =Explicit Numerical Offsets from UTC= <pre> from datetime import datetime, timezone dt = datetime.now() # This is a naive datetime value print(dt.isoformat()) print(dt.tzinfo) # Cast this as UTC dt = dt.replace(tzinfo=timezone.utc) # Define the offset offset = "+1000" # Convert as so... tz_aware_dt = dt.astimezone(datetime.strptime(offset, "%z").tzinfo) print(tz_aware_dt.isoformat()) </pre> Category:Python Category:datetime Category:EXamples"

New page

=Explicit Numerical Offsets from UTC=

<pre>
from datetime import datetime, timezone

dt = datetime.now()

# This is a naive datetime value

print(dt.isoformat())
print(dt.tzinfo)

# Cast this as UTC

dt = dt.replace(tzinfo=timezone.utc)

# Define the offset

offset = "+1000"

# Convert as so...

tz_aware_dt = dt.astimezone(datetime.strptime(offset, "%z").tzinfo)

print(tz_aware_dt.isoformat())
</pre>

[[Category:Python]]
[[Category:datetime]]
[[Category:EXamples]]