The Chennai Metro Rail has announced its weekday (Monday to Friday) operating schedule, with services running from 5:00 AM to 11:00 PM across all corridors.
Blue Line (Wimco Nagar Depot - Airport)
- First train:
- From Airport: 4:51 AM
- From Wimco Nagar Depot: 4:56 AM
- Last train: 11:00 PM from both terminals.
Train Frequency
- Peak hours (8:00-11:00 AM & 5:00-8:00 PM): Every 6 minutes.
- Non-peak hours (5:00-8:00 AM, 11:00 AM-5:00 PM & 8:00-10:00 PM): Every 7 minutes.
- Late night (10:00-11:00 PM): Every 15 minutes.
During peak hours, short-loop services operate between Washermenpet and Alandur, providing trains every 3 minutes on this stretch.
Inter-Corridor (Chennai Central - Airport)
- First train:
- From Chennai Central: 4:55 AM
- From Airport: 5:02 AM
- Last train:
- From Chennai Central: 11:17 PM
- From Airport: 11:08 PM
Train Frequency
- Peak hours: Every 12 minutes.
- Non-peak hours: Every 14 minutes.
- 10:00-11:00 PM: Every 30 minutes.
Green Line (Chennai Central - St. Thomas Mount)
- First train:
- From Chennai Central: 5:02 AM
- From St. Thomas Mount: 5:01 AM
- Last train: 11:00 PM from both terminals.
Train Frequency
- Peak hours: Every 12 minutes.
- Non-peak hours: Every 14 minutes.
- 10:00-11:00 PM: Every 30 minutes.
The Central-Alandur section operates at 6-minute intervals during peak hours, 7 minutes during non-peak hours, and 15 minutes during the final hour of service. The 3-minute short-loop services between Washermenpet and Alandur are available only on weekdays and are not operated on Saturdays, Sundays, or public holidays.