from datetime import datetime, date, time

# Get current date and time
now = datetime.now()
today = date.today()

print(f"Current datetime: {now}")
print(f"Today's date: {today}")
print(f"Current time: {now.time()}")

from datetime import datetime

# Get current local date and time
now = datetime.now()
print(f"Now: {now}")

# Get specific components
print(f"Year: {now.year}")
print(f"Month: {now.month}")
print(f"Day: {now.day}")
print(f"Hour: {now.hour}")
print(f"Minute: {now.minute}")
print(f"Second: {now.second}")

from datetime import date

# Get current date
today = date.today()
print(f"Today: {today}")

# Get date components
print(f"Year: {today.year}")
print(f"Month: {today.month}")
print(f"Day: {today.day}")

# Get weekday (0=Monday, 6=Sunday)
print(f"Weekday: {today.weekday()}")
print(f"Day name: {today.strftime('%A')}")

from datetime import datetime

# Get current time from datetime
now = datetime.now()
current_time = now.time()

print(f"Current time: {current_time}")
print(f"Hour: {current_time.hour}")
print(f"Minute: {current_time.minute}")
print(f"Second: {current_time.second}")
print(f"Microsecond: {current_time.microsecond}")

from datetime import datetime

# Get UTC time
utc_now = datetime.utcnow()
local_now = datetime.now()

print(f"UTC time: {utc_now}")
print(f"Local time: {local_now}")

# Calculate time zone offset
offset = local_now - utc_now
print(f"Time zone offset: {offset}")

import time
from datetime import datetime

# Get Unix timestamp (seconds since 1970-01-01)
timestamp = time.time()
print(f"Unix timestamp: {timestamp}")

# Convert timestamp to datetime
dt = datetime.fromtimestamp(timestamp)
print(f"From timestamp: {dt}")

# Get timestamp from datetime
dt_timestamp = datetime.now().timestamp()
print(f"DateTime timestamp: {dt_timestamp}")

from datetime import datetime

def log_event(message):
    """Simple logging with timestamp"""
    timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
    print(f"[{timestamp}] {message}")

# Example usage
log_event("Application started")
log_event("User logged in")
log_event("Processing data")
log_event("Operation completed")

from datetime import datetime

def create_filename(base_name, extension="txt"):
    """Create filename with current date/time"""
    timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
    return f"{base_name}_{timestamp}.{extension}"

# Example usage
log_file = create_filename("application_log", "log")
backup_file = create_filename("data_backup", "json")
report_file = create_filename("daily_report", "pdf")

print(f"Log file: {log_file}")
print(f"Backup file: {backup_file}")
print(f"Report file: {report_file}")

from datetime import date

def calculate_age(birth_date):
    """Calculate age from birth date"""
    today = date.today()
    
    # Calculate age
    age = today.year - birth_date.year
    
    # Adjust if birthday hasn't occurred this year
    if today.month < birth_date.month or (
        today.month == birth_date.month and today.day < birth_date.day
    ):
        age -= 1
    
    return age

# Example usage
birth = date(1990, 5, 15)
age = calculate_age(birth)
print(f"Age: {age} years old")

# Days until next birthday
next_birthday = date(2024, 5, 15)  # Replace with current year
days_to_birthday = (next_birthday - date.today()).days
print(f"Days to next birthday: {days_to_birthday}")