diff --git a/src/Time.Duration.savi b/src/Time.Duration.savi
index e427278..9fb597f 100644
--- a/src/Time.Duration.savi
+++ b/src/Time.Duration.savi
@@ -20,7 +20,7 @@
 
   :: Represent a duration of the given number of nanoseconds.
   :new nanoseconds(n U64):
-    if (n < 1000000000) (
+    if n < 1000000000 (
       @total_seconds = 0
       @nanosecond = n.u32
     |
@@ -30,7 +30,7 @@
 
   :: Represent a duration of the given number of microseconds.
   :new microseconds(n U64)
-    if (n < 1000000) (
+    if n < 1000000 (
       @total_seconds = 0
       @nanosecond = n.u32 * 1000
     |
@@ -40,7 +40,7 @@
 
   :: Represent a duration of the given number of milliseconds.
   :new milliseconds(n U64)
-    if (n < 1000) (
+    if n < 1000 (
       @total_seconds = 0
       @nanosecond = n.u32 * 1000000
     |
@@ -182,37 +182,37 @@
     printed_anything = False
     output << "Time.Duration("
 
-    if (weeks > 0) (
+    if weeks > 0 (
       Inspect.into(output, weeks), output << " weeks"
       printed_anything = True
     )
 
-    if (days > 0) (
-      if printed_anything (output << ", ")
+    if days > 0 (
+      if printed_anything output << ", "
       Inspect.into(output, days), output << " days"
       printed_anything = True
     )
 
-    if (hours > 0) (
-      if printed_anything (output << ", ")
+    if hours > 0 (
+      if printed_anything output << ", "
       Inspect.into(output, hours), output << " hours"
       printed_anything = True
     )
 
-    if (minutes > 0) (
-      if printed_anything (output << ", ")
+    if minutes > 0 (
+      if printed_anything output << ", "
       Inspect.into(output, minutes), output << " minutes"
       printed_anything = True
     )
 
-    if (seconds > 0) (
-      if printed_anything (output << ", ")
+    if seconds > 0 (
+      if printed_anything output << ", "
       Inspect.into(output, seconds), output << " seconds"
       printed_anything = True
     )
 
-    if (nanoseconds > 0) (
-      if printed_anything (output << ", ")
+    if nanoseconds > 0 (
+      if printed_anything output << ", "
       Inspect.into(output, nanoseconds), output << " nanoseconds"
       printed_anything = True
     )
@@ -241,7 +241,7 @@
   :fun "+"(other Time.Duration'box)
     total = @total_seconds + other.total_seconds
     nanos = @nanosecond + other.nanosecond
-    while (nanos >= Time._nanoseconds_per_second) (
+    while nanos >= Time._nanoseconds_per_second (
       nanos -= Time._nanoseconds_per_second
       total += 1
     )
@@ -254,7 +254,7 @@
   :fun "+!"(other Time.Duration'box)
     total = @total_seconds +! other.total_seconds
     nanos = @nanosecond + other.nanosecond
-    while (nanos >= Time._nanoseconds_per_second) (
+    while nanos >= Time._nanoseconds_per_second (
       nanos -= Time._nanoseconds_per_second
       total = total +! 1
     )
@@ -267,7 +267,7 @@
   :fun "-"(other Time.Duration'box)
     total = @total_seconds, other_total = other.total_seconds
     nanos = @nanosecond,    other_nanos = other.nanosecond
-    while (nanos < other_nanos) (
+    while nanos < other_nanos (
       nanos += Time._nanoseconds_per_second
       total -= 1
     )
@@ -280,7 +280,7 @@
   :fun "-!"(other Time.Duration'box)
     total = @total_seconds, other_total = other.total_seconds
     nanos = @nanosecond,    other_nanos = other.nanosecond
-    while (nanos < other_nanos) (
+    while nanos < other_nanos (
       nanos += Time._nanoseconds_per_second
       total = total -! 1
     )
diff --git a/src/Time.Formatter.savi b/src/Time.Formatter.savi
index fb8b9ff..46bd310 100644
--- a/src/Time.Formatter.savi
+++ b/src/Time.Formatter.savi
@@ -32,13 +32,13 @@
     original_out_size = out.size
     is_bad_format = False
 
-    while (i < @pattern.size()) (
+    while i < @pattern.size() (
       try (
         char U8 = @pattern.byte_at!(i)
 
         ok = True
 
-        if (char == '%') (
+        if char == '%' (
           char = @pattern.byte_at!(i + 1)
           case (
           | char == 'a' | @short_day_name(time, out)
@@ -328,11 +328,11 @@
 
   :fun hour_12_zero_padded(time Time'box, out String'ref = String.new)
     h = (time.hour % 12).u64
-    @pad2(if (h == 0) (12 | h), '0', out)
+    @pad2(if h == 0 (12 | h), '0', out)
 
   :fun hour_12_blank_padded(time Time'box, out String'ref = String.new)
     h = (time.hour % 12).u64
-    @pad2(if (h == 0) (12 | h), ' ', out)
+    @pad2(if h == 0 (12 | h), ' ', out)
 
   :fun minute(time Time'box, out String'ref = String.new)
     @pad2(time.minute.u64, '0', out)
@@ -374,10 +374,10 @@
     out
 
   :fun am_pm(time Time'box) String
-    if (time.hour < 12) ("am" | "pm")
+    if time.hour < 12 ("am" | "pm")
 
   :fun am_pm_upcase(time Time'box) String
-    if (time.hour < 12) ("AM" | "PM")
+    if time.hour < 12 ("AM" | "PM")
 
   :fun day_of_week_monday_1_7(time Time'box, out String'ref = String.new)
     Inspect.into(out, time.day_of_week.u64)
@@ -446,25 +446,25 @@
     @get_day_name(time).substring(0, 3)
 
   :fun pad2(value U64, padding U8, out String'ref = String.new)
-    if (value < 10) out.push_byte(padding)
+    if value < 10 out.push_byte(padding)
     Inspect.into(out, value)
     out
 
   :fun pad3(value U64, padding U8, out String'ref = String.new)
-    if (value < 100) out.push_byte(padding)
+    if value < 100 out.push_byte(padding)
     @pad2(value, padding, out)
 
   :fun pad4(value U64, padding U8, out String'ref = String.new)
-    if (value < 1000) out.push_byte(padding)
+    if value < 1000 out.push_byte(padding)
     @pad3(value, padding, out)
 
   :fun pad6(value U64, padding U8, out String'ref = String.new)
-    if (value < 100000) out.push_byte(padding)
-    if (value < 10000) out.push_byte(padding)
+    if value < 100000 out.push_byte(padding)
+    if value < 10000 out.push_byte(padding)
     @pad4(value, padding, out)
 
   :fun pad9(value U64, padding U8, out String'ref = String.new)
-    if (value < 100000000) out.push_byte(padding)
-    if (value < 10000000) out.push_byte(padding)
-    if (value < 1000000) out.push_byte(padding)
+    if value < 100000000 out.push_byte(padding)
+    if value < 10000000 out.push_byte(padding)
+    if value < 1000000 out.push_byte(padding)
     @pad6(value, padding, out)
diff --git a/src/Time.Measure.savi b/src/Time.Measure.savi
index b646c35..52ff84b 100644
--- a/src/Time.Measure.savi
+++ b/src/Time.Measure.savi
@@ -48,7 +48,7 @@
       // so we ask it for the timebase and multiple/divide to get nanoseconds.
       timebase = Pair(U32, U32).new(0, 0)
       timebase_res = _FFI.mach_timebase_info(stack_address_of_variable timebase)
-      return 0 if (timebase_res != 0)
+      return 0 if timebase_res != 0
       _FFI.mach_absolute_time
       * timebase.first.u64
       / timebase.last.u64
@@ -89,7 +89,7 @@
       // so we ask it for the timebase and multiple/divide to get microseconds.
       timebase = Pair(U32, U32).new(0, 0)
       timebase_res = _FFI.mach_timebase_info(stack_address_of_variable timebase)
-      return 0 if (timebase_res != 0)
+      return 0 if timebase_res != 0
       _FFI.mach_absolute_time
       * timebase.first.u64
       / (timebase.last.u64 * 1000)
@@ -130,7 +130,7 @@
       // so we ask it for the timebase and multiple/divide to get milliseconds.
       timebase = Pair(U32, U32).new(0, 0)
       timebase_res = _FFI.mach_timebase_info(stack_address_of_variable timebase)
-      return 0 if (timebase_res != 0)
+      return 0 if timebase_res != 0
       _FFI.mach_absolute_time
       * timebase.first.u64
       / (timebase.last.u64 * 1000000)
diff --git a/src/Time.savi b/src/Time.savi
index d297b6d..e480092 100644
--- a/src/Time.savi
+++ b/src/Time.savi
@@ -84,7 +84,7 @@
   :: DEPRECATED: Use `Time.Duration.nanoseconds` instead.
   :new nanoseconds(n U32):
     @total_seconds = 0
-    while (@_nanoseconds_per_second < n) (
+    while @_nanoseconds_per_second < n (
       n -= @_nanoseconds_per_second
       @total_seconds += 1
     )
@@ -197,21 +197,21 @@
     total_days -= num400 * @_days_per_400_years
 
     num100 U64 = total_days / @_days_per_100_years // TODO: shouldn't need an explicit U64 here
-    if (num100 == 4) (num100 = 3) // account for leap years
+    if num100 == 4 (num100 = 3) // account for leap years
     total_days -= num100 * @_days_per_100_years
 
     num4 = total_days / @_days_per_4_years
     total_days -= num4 * @_days_per_4_years
 
     numyears U64 = total_days / 365 // TODO: shouldn't need an explicit U64 here
-    if (numyears == 4) (numyears = 3) // account for leap years
+    if numyears == 4 (numyears = 3) // account for leap years
     total_days -= numyears * 365
 
     year = (num400 * 400 + num100 * 100 + num4 * 4 + numyears + 1).u32
 
     month U8 = 0
     days_in_month U64 = 0
-    while (total_days >= days_in_month) (
+    while total_days >= days_in_month (
       total_days -= days_in_month
       month += 1
       days_in_month = @_days_in_month(month, year).u64
@@ -249,12 +249,12 @@
   :: by the given year, month, and day in the proleptic Gregorian calendar.
   :fun non _absolute_days(year U32, month U8, day U8) U64
     // Normalize the month index, treating months beyond 12 as additional years.
-    while (month > 12) (year += 1, month -= 12)
+    while month > 12 (year += 1, month -= 12)
 
     // Calculate the number of days since day 1 of the given year.
     days_since_jan_1 = day.u64 - 1
     scan_month U8 = 1
-    while (scan_month < month) (
+    while scan_month < month (
       days_since_jan_1 += @_days_in_month(scan_month, year).u64
       scan_month += 1
     )
@@ -274,7 +274,7 @@
     total_days -= num400 * @_days_per_400_years
 
     num100 U64 = (total_days / @_days_per_100_years)
-    if (num100 == 4) (// leap
+    if num100 == 4 (// leap
       num100 = 3
     )
     total_days -= num100 * @_days_per_100_years
@@ -283,7 +283,7 @@
     total_days -= num4 * @_days_per_4_years
 
     numyears = (total_days / 365)
-    if (numyears == 4) (// leap
+    if numyears == 4 (// leap
       numyears = 3
     )
     total_days -= numyears * 365
@@ -297,7 +297,7 @@
     try (
       while True (
         days_in_month = @_days_in_month(month.u8, year.u32).u64
-        if (total_days < days_in_month) (
+        if total_days < days_in_month (
           error! // TODO use break
         )
 
@@ -329,7 +329,7 @@
       // previous year and the first Monday is actually in week 2.
       week_number = ((day_year - day_of_week.u64 + 10) / 7).u64
 
-      if (week_number == 0) (
+      if week_number == 0 (
         // Week number 0 means the date belongs to the last week of the previous year.
         year -= 1
 
@@ -339,18 +339,18 @@
         // year and January 1 is on a Saturday.
         jan1_day_of_week = Time.DayOfWeek.from_value(((day_of_week.u64 - day_year + 1) % 7).u8)
 
-        if ((jan1_day_of_week == Time.DayOfWeek.Friday) || (jan1_day_of_week == Time.DayOfWeek.Saturday && @_is_leap_year(year.u32))) (
+        if (jan1_day_of_week == Time.DayOfWeek.Friday) || (jan1_day_of_week == Time.DayOfWeek.Saturday && @_is_leap_year(year.u32)) (
           week_number = 53
         |
           week_number = 52
         )
       |
-        if (week_number == 53) (
+        if week_number == 53 (
           // Week number 53 is actually week number 1 of the following year, if
           // December 31 is on a Monday, Tuesday or Wednesday.
           dec31_day_of_week = (day_of_week.u64 + 31 - day) % 7
 
-          if (dec31_day_of_week <= Time.DayOfWeek.Wednesday.u64) (
+          if dec31_day_of_week <= Time.DayOfWeek.Wednesday.u64 (
             year += 1
             week_number = 1
           )
diff --git a/src/_FFI.savi b/src/_FFI.savi
index 75df705..3fc4fcf 100644
--- a/src/_FFI.savi
+++ b/src/_FFI.savi
@@ -20,7 +20,7 @@
   :: Wrapper for C functions used to get subsecond values on Windows.
   :fun windows_subseconds(factor U64)
     freq = @_windows_perf_freq
-    if (freq <= factor) (
+    if freq <= factor (
       @_windows_perf_counter * (factor / freq)
     |
       (@_windows_perf_counter * factor) / freq