time zone

[Sinansi]

TradingView provide date in UTC time zone. But when I use tvdatafeed I see datetime adjusted to local system time zone. Does tvdatafeed change the source time zone to local system time zone?

[anselmoaraujo]

Yes. You need to readjust it back to UTC.

[Sinansi]

Thank you!

[Sinansi]

By the way, isnt this a bug? tvdatafeed should pass the date as UTC because tradingview already provide its date in UTC.

tvdatafeed should not modify the data it retrieves from tradingview server.
tvdatafeed should keep the data as it is without any modifications.

[Sinansi]

if there is any developer who can take care with this issue it would be great.
I export stock charts from tradingview interface in UTC, then I merge them with data downloaded from tvdatafeed.
The merge breaks because the dates are in different timezones.

[DROBNJAK]

Same problem here. Would love to have an option in tvdatafeed to download data in UTC time, instead in exchange's local time. Local time creates big problems when one wants to compare behaviour of different instruments, or use one instrument as an AI input into another instrument, or simply when one wants to do statistical arbitrage between instruments. All these nice things can only be done when all instruments are in UTC time.

[westonplatter]

@DROBNJAK

import subprocess

crudeoil_data = tv.get_hist(
    symbol='CL',
    exchange='NYMEX',
    interval=Interval.in_1_hour,
    n_bars=500,
    fut_contract=1)

# Auto-detect system timezone from /etc/localtime symlink (macOS/Linux)
tz_path = subprocess.run(['readlink', '/etc/localtime'], capture_output=True, text=True).stdout.strip()
local_tz = '/'.join(tz_path.split('/')[-2:])
print(f'Detected timezone: {local_tz}')

# Add UTC column
crudeoil_data['datetime_utc'] = (
    crudeoil_data.index
    .tz_localize(local_tz)
    .tz_convert('UTC')
)

crudeoil_data.head()

[DROBNJAK]

why do a double somersault when all that one needs is single parameter in a colling function?