

In [8]:

    
from datetime import datetime
import pandas as pd



In [4]:

    
pd.__version__









    Out[4]:





'1.0.1'

pandas timestamp now



In [7]:

    
df = pd.DataFrame({
    "name":["alice","bob","charlie", "david"],
    "age":[12,43,22,34]
})
df



In [10]:

    
df["time"] = pd.Timestamp(datetime.now())
df









    Out[10]:







  
    
      
      name
      age
      time
    
  
  
    
      0
      alice
      12
      2020-02-26 23:24:03.765842
    
    
      1
      bob
      43
      2020-02-26 23:24:03.765842
    
    
      2
      charlie
      22
      2020-02-26 23:24:03.765842
    
    
      3
      david
      34
      2020-02-26 23:24:03.765842

timestamp to string



In [14]:

    
df = pd.DataFrame({
    "name":["alice","bob","charlie", "david"],
    "age":[12,43,22,34]
})
df["time"] = pd.Timestamp(datetime.now())
df









    Out[14]:







  
    
      
      name
      age
      time
    
  
  
    
      0
      alice
      12
      2020-02-26 23:39:45.399436
    
    
      1
      bob
      43
      2020-02-26 23:39:45.399436
    
    
      2
      charlie
      22
      2020-02-26 23:39:45.399436
    
    
      3
      david
      34
      2020-02-26 23:39:45.399436



In [16]:

    
df["time_str"] = df["time"].map(lambda ts: ts.strftime("%d-%m-%Y"))

df









    Out[16]:







  
    
      
      name
      age
      time
      time_str
    
  
  
    
      0
      alice
      12
      2020-02-26 23:39:45.399436
      26-02-2020
    
    
      1
      bob
      43
      2020-02-26 23:39:45.399436
      26-02-2020
    
    
      2
      charlie
      22
      2020-02-26 23:39:45.399436
      26-02-2020
    
    
      3
      david
      34
      2020-02-26 23:39:45.399436
      26-02-2020



In [ ]:

	name	age	time
0	alice	12	2020-02-26 23:24:03.765842
1	bob	43	2020-02-26 23:24:03.765842
2	charlie	22	2020-02-26 23:24:03.765842
3	david	34	2020-02-26 23:24:03.765842

	name	age	time
0	alice	12	2020-02-26 23:39:45.399436
1	bob	43	2020-02-26 23:39:45.399436
2	charlie	22	2020-02-26 23:39:45.399436
3	david	34	2020-02-26 23:39:45.399436

	name	age	time	time_str
0	alice	12	2020-02-26 23:39:45.399436	26-02-2020
1	bob	43	2020-02-26 23:39:45.399436	26-02-2020
2	charlie	22	2020-02-26 23:39:45.399436	26-02-2020
3	david	34	2020-02-26 23:39:45.399436	26-02-2020