MarketingDays

Lead time calculator

The lead time calculator takes a campaign date and a production lead time in days, then returns the brief, creative and teaser milestones as a runway. It uses the same calculation as every observance page on MarketingDays, applied to a date of your choosing.

How the runway is divided

MarketingDays splits the production window into four milestones. Brief opens the window. Creative begins at one third. Teaser publishing begins at two thirds. Live is the observance itself.

Worked example — Diwali 2027

BRIEFSep 14CREATIVESep 29TEASEROct 14LIVEOct 2945 days of lead timeDiwali

Diwali carries 45 days of lead time, so the brief is due 14 September 2027.

Calculate a runway

Lead times used on this site

Recorded lead time by observance
ObservanceLead timeType
Akshaya Tritiya45 daysfestival
Navratri45 daysfestival
Dhanteras45 daysfestival
Diwali45 daysfestival
Raksha Bandhan40 daysfestival
Ganesh Chaturthi40 daysfestival
Onam40 daysfestival
Dussehra40 daysfestival
Black Friday40 dayscommercial
Christmas40 daysfestival
Valentine's Day35 daysinternational
Holi35 daysfestival
Karwa Chauth35 daysfestival
New Year's Day30 daysinternational
Pongal30 daysfestival