This is the 2401st most frequent Turkish word.
haftalarda
"In weeks"
In this sentence, 'haftalarda' is used to indicate a general period of weeks in the recent past.
Son haftalarda hava çok değişken oldu.
In recent weeks, the weather has been very variable.
Here, 'haftalarda' suggests an approximate time frame in the plural 'within a few weeks'.
Birkaç haftalarda bu kitabı bitireceğim.
I will finish this book in a few weeks.
In this context, 'haftalarda' is used to describe a time range in plural near-future.