the API to find the barindex of a bar corresponding to a given time

[clearpicks]

I'd like to find out the bar index of a bar corresponding to a given date (for example, the next option expiry day). I think I saw such an EFS API somewhere before but I can not recall its name and syntex and can not find it in chm file. Can someone help me?

- Clearpicks

[eSignal_JasonK]

Hello Clearpicks,

Were you thinking of getFirstBarIndexOfDay()?

[clearpicks]

Hello JasonK,

It does not work because it seems it can not look forward. If passing a future date to the api, it just returns null. Anyway I have figured out a bruteforce metthod to find out the bar index.

- Clearpicks

[pj909]

Clearpicks, What was the solution you came up with? I too am trying to find the bar index for a specific date (or time). I want to calculate the number of bars between two dates. And to draw something from the start date to the end date.