diff --git a/README.md b/README.md
index 879e93d..1a53b7f 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,3 @@
 # elegantt
 
-A Typst package to draw gantt fiagramm with date based on timeliney package
\ No newline at end of file
+A package to draw gantt diagrams with dates based on the timeliney package
\ No newline at end of file
diff --git a/src/datetime_calc.typ b/src/datetime_calc.typ
deleted file mode 100644
index 60dcf22..0000000
--- a/src/datetime_calc.typ
+++ /dev/null
@@ -1,242 +0,0 @@
-#let is-leap-year(year) = {
-  if calc.rem(year, 4) != 0 {
-    return false
-  }
-  if calc.rem(year, 100) != 0 {
-    return true
-  }
-  return calc.rem(year, 400) == 0
-}
-
-#let get-month-days(month, year) = {
-  let leap = is-leap-year(year)
-  
-  if month == 2 {
-    return if leap {29} else {28}
-  }
-
-  if month >= 8 {
-    month += 1
-  }
-  return if calc.rem(month, 2) == 0 {30} else {31}
-}
-
-#let add(dt, days) = {
-  assert(days >= 0, message: "days cannot be negative; use sub()")
-  
-  let day = dt.day()
-  let month = dt.month()
-  let year = dt.year()
-  let month-days = get-month-days(month, year)
-  let leap = is-leap-year(year)
-
-  for _ in range(days) {
-    if day == month-days {
-      month += 1
-      day = 1
-      if month == 13 {
-        year += 1
-        month = 1
-        leap = is-leap-year(year)
-      }
-      month-days = get-month-days(month, year)
-    } else {
-      day += 1
-    }
-  }
-  return datetime(day: day, month: month, year: year)
-}
-
-#let sub(dt, days) = {
-  assert(days >= 0, message: "days cannot be negative; use add()")
-  
-  let day = dt.day()
-  let month = dt.month()
-  let year = dt.year()
-  let month-days = get-month-days(month, year)
-  let leap = is-leap-year(year)
-
-  for _ in range(days) {
-    if day == 1 {
-      month -= 1
-      if month == 0 {
-        year -= 1
-        month = 12
-        leap = is-leap-year(year)
-      }
-      month-days = get-month-days(month, year)
-      day = month-days
-    } else {
-      day -= 1
-    }
-  }
-  return datetime(day: day, month: month, year: year)
-}
-
-#let offset(dt, days) = {
-  if days < 0 {
-    return sub(dt, -days)
-  }
-  return add(dt, days)
-}
-
-#let add-week-workingdays(dt, weeks) = {
-  let int_part = int(weeks)
-  let float_part = int( (weeks - int_part)*5 + 0.01 )
-  let new_date = add(dt, int_part*7)
-
-  let i = 0
-  while i < float_part {
-    new_date = add(new_date, 1)
-    if new_date.weekday() == 6 {
-      new_date = add(new_date, 2)
-    }
-    if new_date.weekday() == 7 {
-      new_date = add(new_date, 1)
-    }
-    i += 1
-  }
-  return new_date
-}
-
-#let diff-days(a, b) = {
-  let days = 0
-  let neg = b < a
-  if neg {
-    let c = a
-    a = b
-    b = c
-  }
-  while (a < b) {
-    days += 1
-    a = add(a, 1)
-  }
-  return if neg {-days} else {days}
-}
-#let diff-weeks(start_date, finish_date) = {
-  calc.round(
-    diff-days(
-      start_date,
-      add(finish_date, 1)
-    )/7,
-    digits: 2
-  )
-}
-#let diff-weeks-workingday(start_date, finish_date) = {
-  let days = 0
-  while (start_date <= finish_date) {
-    if start_date.weekday() != 6 and start_date.weekday() != 7 {
-      days += 1
-    }
-    start_date = add(start_date, 1)
-  }
-  return days/5
-}
-#let diff-months(start_date, finish_date) = {
-  calc.round(
-    diff-days(
-      start_date,
-      add(finish_date, 1)
-    )/30,
-    digits: 2
-  )
-}
-
-#let count-weeks(a, b) = {
-  let weeks = 0
-  let neg = b < a
-  if neg {
-    let c = a
-    a = b
-    b = c
-  }
-  while (a < b) {
-    weeks += 1
-    a = add(a, 7)
-  }
-  return if neg {-weeks} else {weeks}
-}
-#let count-months(a, b) = {
-  let months = 0
-  let neg = b < a
-  if neg {
-    let c = a
-    a = b
-    b = c
-  }
-  while (a < b) {
-    months += 1
-    a = add(a, 30)
-  }
-  return if neg {-months} else {months}
-}
-
-#let count-years(a, b) = {
-  let years = 0
-  let neg = b < a
-  if neg {
-    let c = a
-    a = b
-    b = c
-  }
-  while (a < b) {
-    years += 1
-    a = add(a, 365)
-  }
-  return if neg {-years} else {years}
-}
-
-#let remaining_week_on_month(date) ={
-  diff-weeks(
-    date,
-    datetime(
-      year: date.year(),
-      month: date.month(),
-      day: get-month-days(date.month(), date.year())
-    )
-  )
-}
-
-#let remaining_week_on_month-workingday(date) ={
-  diff-weeks-workingday(
-    date,
-    datetime(
-      year: date.year(),
-      month: date.month(),
-      day: get-month-days(date.month(), date.year())
-    )
-  )
-}
-
-#let remaining_week_on_year(date) ={
-  diff-weeks(
-    date,
-    datetime(
-      year: date.year(),
-      month: 12,
-      day: 31
-    )
-  )
-}
-
-#let workingday_ratio(date) = {
-  let weekday = date.weekday() -1
-  if weekday == 6 {
-    weekday = 5
-  }
-  if weekday == 7 {
-    weekday = 5
-  }
-  return weekday/5
-}
-
-
-#let equalDate(date1, date2) = {
-  let year = date1.year() == date2.year()
-  let month = date1.month() == date2.month()
-  let day = date1.day() == date2.day()
-
-  return year and month and day
-}
-
-
diff --git a/typst.toml b/typst.toml
index 2d05eaf..75eed20 100644
--- a/typst.toml
+++ b/typst.toml
@@ -9,6 +9,6 @@ authors = [
 ]
 categories = ["visualization"]
 license = "GPL-3.0-only"
-description = "A package to draw gantt fiagramm with date based on timeliney package"
+description = "A package to draw gantt diagrams with dates based on the timeliney package"
 keywords = ["gantt", "date", "planning", "timeliney"]
 exclude = [ "/gallery/*" ]