I have two datetimes between which I would like to generate regular intervals of 4 hours (excluding the last interval, which can be less than 4 hours if there are less than 4 hours between the previous timestamp and end). I am stuck on interval generation with pandas.date_range, which only returns the end tim…
Tag: timestamp
Python calculated Timedelta 50 years in future, should be same day
This is a follow up to Calculating new column value in dataframe based on next rows column value The solution in the previous question worked for a column holding hh:mm:ss values as a string. I tried applying (no pun intended) the same logic to calculate the 1 second difference on a column of pandas Timestamp…
Resampling timestamps in a CSV
I have a CSV file that stores data from different smartphone sensors. The timestamps are elapsed nanoseconds since the program to record the data was started. Short example: The time steps between the timestamps are not equal, but I would like them to be. My question is how to achieve this? I was thinking abo…
How to retrieve idAdjustedUTC flag value for a TIMESTAMP column in a parquet file?
I have a parquet file with a number of columns of type converted_type (legacy): TIMESTAMP_MICROS. I want to check if the flag isAjustedToUTC is true. I can get it this way: This gives me either true or false as string. Is there another way to retrieve the value of isAdjustedToUTC without using a regex? Answer…
How to write timestamp to txt file when milliseconds are zeroes in python
I’m extracting create timestamp from DB/2 table and writing it to a txt file to be used in later processing. Python writes the timestamp correctly except when the milliseconds are zeroes. When the milliseconds are zeroes, it does not write the milliseconds. How can I make it write the zero milliseconds?…
Convert datetime to Unix timestamp and convert it back in python
I have dt = datetime(2013,9,1,11), and I would like to get a Unix timestamp of this datetime object. When I do (dt – datetime(1970,1,1)).total_seconds() I got the timestamp 1378033200. When converting it back using datetime.fromtimestamp I got datetime.datetime(2013, 9, 1, 6, 0). The hour doesn’t …