diff --git a/src/app/Graph/DataBoxes.tsx b/src/app/Graph/DataBoxes.tsx
index 9f7b865..a00e539 100644
--- a/src/app/Graph/DataBoxes.tsx
+++ b/src/app/Graph/DataBoxes.tsx
@@ -120,8 +120,8 @@ const Consumed = function (props: { consumption: number; totalCost: number; dayC
 
   const renderPeriod = (p: config.PeriodTypes) => {
     switch (p) {
-      // case 'last-month':
-      //   return <span>förra månaden</span>
+      case 'last-month':
+        return <span>förra månaden</span>
       case 'this-month':
         return <span>sedan den 1e i månaden</span>
       case 'rolling':
@@ -138,17 +138,17 @@ const Consumed = function (props: { consumption: number; totalCost: number; dayC
         switch (configState.periodType) {
           case 'last-month':
             p = 'rolling'
-            //   if (new Date().getDate() === 1) {
-            //     p = 'rolling'
-            //   } else {
-            //     p = 'this-month'
-            //   }
+            if (new Date().getDate() === 1) {
+              p = 'rolling'
+            } else {
+              p = 'this-month'
+            }
             break
           case 'this-month':
             p = 'rolling'
             break
           case 'rolling':
-            p = 'this-month'
+            p = 'last-month'
             break
         }
         dispatch(config.setPeriod(p))
diff --git a/src/app/Graph/GraphLoader.lib.ts b/src/app/Graph/GraphLoader.lib.ts
new file mode 100644
index 0000000..858d632
--- /dev/null
+++ b/src/app/Graph/GraphLoader.lib.ts
@@ -0,0 +1,27 @@
+export interface Period {
+  from: Date
+  to: Date
+  hours: number
+}
+
+export function getMonthIntervalFor(month: number): Period {
+  const now = new Date()
+  now.setHours(0)
+  now.setMinutes(0)
+  now.setSeconds(0)
+  now.setMilliseconds(0)
+
+  // look at previous years numbers if month is ahead of current month
+  const year = month > now.getMonth() ? -1 : 0
+
+  const from = new Date(now)
+  from.setFullYear(now.getFullYear() + year, month, 1)
+
+  const to = new Date(from)
+  to.setFullYear(now.getFullYear() + year, month + 1, 1)
+
+  const ms = to.getTime() - from.getTime()
+  const hours = Math.floor(ms / 1000 / 60 / 60)
+
+  return { from, to, hours }
+}
diff --git a/src/app/Graph/GraphLoader.tsx b/src/app/Graph/GraphLoader.tsx
index 955dac9..3a0c804 100644
--- a/src/app/Graph/GraphLoader.tsx
+++ b/src/app/Graph/GraphLoader.tsx
@@ -1,7 +1,6 @@
 import { useEffect, useState } from 'react'
 import { match } from 'react-router'
 
-import moment from 'moment'
 import * as tibber from '../../lib/tibber'
 import * as svk from '../../lib/svk/'
 import * as dataprep from '../../lib/dataprep'
@@ -16,6 +15,7 @@ import { useDispatch, useSelector } from 'src/lib/hooks'
 import { push } from 'connected-react-router'
 
 import { DataSourceContext } from './Graphs'
+import { getMonthIntervalFor } from './GraphLoader.lib'
 
 type Params = {
   id: string
@@ -39,36 +39,49 @@ export default function GraphLoader(props: Props) {
   const { gridAreaCode, priceAreaCode } = props.match.params
   const homeId = props.match.params.id
 
-  let period: number
-  switch (configState.periodType) {
-    case 'last-month': {
-      const now = moment()
-      const start = moment().subtract(1, 'month').date(1).hour(0).minute(0).second(0)
-      const diff = moment.duration(now.diff(start))
-      period = Math.ceil(diff.as('hours'))
-      break
-    }
-    case 'this-month':
-      period = new Date().getDate() * 24
-      break
-    case 'rolling':
-      period = period = 32 * 24
-      break
-  }
-
   useEffect(() => {
     dispatch(snapshotStore.reset())
   }, [dispatch])
 
   useEffect(() => {
-    dispatch(tibber.getConsumption({ homeId, interval: tibber.Interval.Hourly, last: period }))
+    let first: number | undefined = undefined
+    let last: number | undefined = undefined
+    let after: Date | undefined = undefined
+    const now = new Date()
+    switch (configState.periodType) {
+      case 'last-month': {
+        let prevMonth = now.getMonth() - 1
+        if (prevMonth < 0) prevMonth = 11
+
+        const period = getMonthIntervalFor(prevMonth)
+        after = period.from
+        first = period.hours
+        break
+      }
+      case 'this-month': {
+        const period = getMonthIntervalFor(now.getMonth())
+        after = period.from
+        first = period.hours
+        break
+      }
+      case 'rolling':
+        last = last = 32 * 24
+        break
+    }
+
+    console.log({ after, last, first })
+
+    dispatch(
+      tibber.getConsumption({ homeId, resolution: tibber.Interval.Hourly, after, first, last })
+    )
+
     // price is sometimes ahead by 24 hours, so we always add another period on it
-    dispatch(tibber.getPrice({ homeId, interval: tibber.Interval.Hourly, last: period + 24 }))
+    dispatch(tibber.getPrice({ homeId, resolution: tibber.Interval.Hourly, after, first, last }))
 
     dispatch(svk.getProfile({ area: gridAreaCode, period: configState.periodType }))
 
     setFirstLoad(false)
-  }, [dispatch, homeId, period, configState.periodType, gridAreaCode])
+  }, [dispatch, homeId, configState.periodType, gridAreaCode])
 
   const store = async () => {
     dispatch(
diff --git a/src/lib/config.ts b/src/lib/config.ts
index 1b38be2..78eef8c 100644
--- a/src/lib/config.ts
+++ b/src/lib/config.ts
@@ -15,8 +15,6 @@ const getInitialState = (): State => {
 
     switch (savedPeriod) {
       case 'last-month':
-        periodType = 'rolling'
-        break
       case 'this-month':
       case 'rolling':
         periodType = savedPeriod
diff --git a/src/lib/dataprep.ts b/src/lib/dataprep.ts
index 81460cc..dedc47d 100644
--- a/src/lib/dataprep.ts
+++ b/src/lib/dataprep.ts
@@ -100,7 +100,7 @@ export function aggregateDays(
     const prices = hours.map((hour) => hour.price)
     const profiles = hours.map((hour) => hour.profile)
 
-    // Skip days where we are missing data. Most likley close to our boundaries.
+    // Skip days where we are missing data. Most likely close to our boundaries.
     let valid = true
     for (let i = 0; i < consumptions.length; i++) {
       if (!consumptions[i] || !prices[i] || !profiles[i]) {
diff --git a/src/lib/tibber/thunks.ts b/src/lib/tibber/thunks.ts
index 7a375c4..de6291d 100644
--- a/src/lib/tibber/thunks.ts
+++ b/src/lib/tibber/thunks.ts
@@ -36,6 +36,10 @@ export const getHomes = createAsyncThunk<Home[], void>('tibber/getHomes', async
   return result.viewer.homes
 })
 
+interface ConsumptionArgs extends RangeOptions {
+  homeId: string
+}
+
 interface ConsumptionResult {
   viewer: {
     home: {
@@ -46,18 +50,13 @@ interface ConsumptionResult {
   }
 }
 
-export const getConsumption = createAsyncThunk<
-  ConsumptionNode[],
-  {
-    homeId: string
-    interval: Interval
-    last?: number
-  }
->('tibber/getConsumption', async (args) => {
-  const result = await doRequest<ConsumptionResult>(`{
+export const getConsumption = createAsyncThunk<ConsumptionNode[], ConsumptionArgs>(
+  'tibber/getConsumption',
+  async (args) => {
+    const result = await doRequest<ConsumptionResult>(`{
       viewer {
         home(id: "${args.homeId}") {
-          consumption(resolution: ${args.interval}, last: ${args.last || 100}) {
+          consumption(${rangeParameters(args)}) {
             nodes {
               from
               to
@@ -69,11 +68,16 @@ export const getConsumption = createAsyncThunk<
       }
     }`)
 
-  if (!result.viewer.home.consumption) {
-    throw new Error('missing consumption data')
+    if (!result.viewer.home.consumption) {
+      throw new Error('missing consumption data')
+    }
+    return result.viewer.home.consumption.nodes
   }
-  return result.viewer.home.consumption.nodes
-})
+)
+
+interface PriceArgs extends RangeOptions {
+  homeId: string
+}
 
 interface PriceResult {
   viewer: {
@@ -89,20 +93,15 @@ interface PriceResult {
   }
 }
 
-export const getPrice = createAsyncThunk<
-  PriceNode[],
-  {
-    homeId: string
-    interval: Interval
-    last?: number
-  }
->('tibber/getPrice', async (args) => {
-  const result = await doRequest<PriceResult>(`{
+export const getPrice = createAsyncThunk<PriceNode[], PriceArgs>(
+  'tibber/getPrice',
+  async (args) => {
+    const result = await doRequest<PriceResult>(`{
     viewer {
       home(id: "${args.homeId}") {
         currentSubscription{
           priceInfo{
-            range(resolution: ${args.interval}, last: ${args.last || 100}){
+            range(${rangeParameters(args)}){
               nodes{
                 startsAt,
                 total,
@@ -113,11 +112,12 @@ export const getPrice = createAsyncThunk<
       }
     }
   }`)
-  if (!result.viewer.home.currentSubscription.priceInfo.range) {
-    throw new Error('no price data found in range')
+    if (!result.viewer.home.currentSubscription.priceInfo.range) {
+      throw new Error('no price data found in range')
+    }
+    return result.viewer.home.currentSubscription.priceInfo.range.nodes
   }
-  return result.viewer.home.currentSubscription.priceInfo.range.nodes
-})
+)
 
 async function doRequest<T>(query: string) {
   const init: RequestInit = {
@@ -144,3 +144,50 @@ async function doRequest<T>(query: string) {
 interface GQLResponse<T = any> {
   data: T
 }
+
+interface RangeOptions {
+  resolution: Interval
+
+  after?: Date
+  before?: Date
+  first?: number
+  last?: number
+}
+
+function rangeParameters(args: RangeOptions): string {
+  if (args.after && args.before) throw new Error('invalid combination: before && after')
+  if (args.first && args.last) throw new Error('invalid combination: last && first')
+
+  return Object.entries(args)
+    .filter(([name, value]) => {
+      if (value === undefined) return false
+      // Allowlist with the args we are using as options
+      return ['resolution', 'after', 'before', 'first', 'last'].indexOf(name) !== -1
+    })
+    .map<[string, string]>(([name, value]) => {
+      if (value instanceof Date) {
+        // Before / after on a hourly resolution is > and <, not >= and <=.
+        // Decrease the timestamp by a millisecond to include the first or last hour we are looking for.
+        switch (name) {
+          case 'after':
+            value = new Date(value.getTime() - 1)
+            break
+          case 'before':
+            value = new Date(value.getTime() + 1)
+            break
+        }
+
+        return [name, `"${btoa(value.toISOString())}"`]
+      } else if (typeof value === 'number') {
+        return [name, value.toFixed(0)]
+      } else {
+        value = '' + value
+      }
+
+      return [name, value]
+    })
+    .map(([name, value]) => {
+      return `${name}: ${value}`
+    })
+    .join(', ')
+}