IndiGo, which cancelled several flights, used 'IndiGo Standard Time' each time it did ops on time
IndiGo, which is facing widespread criticism over hundreds of flight cancellations this week, used to announce the tagline 'IndiGo Standard Time' when its planes completed boarding on time. The tagline is a play on 'Indian Standard Time', which India follows. IndiGo's on-time performance (OTP) was just 19.7% on Wednesday, the lowest among all Indian airlines, according to government data.